diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index acf73172..f227ece3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
       fail-fast: false
 
     steps:
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 03506e16..0ed8dd2d 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,14 +1,39 @@
 Toolium Changelog
 =================
 
-v3.1.1
+v3.1.4
 ------
 
 *Release date: In development*
 
-- Upgrade Sphinx version from 4.* to 7.* to fix readthedocs theme format
+- Add `ignore_empty` optional parameter to POEditor configuration to ignore empty translations
 - Fix on swipe method. Duration from None to 0.
 
+v3.1.3
+------
+
+*Release date: 2024-02-06*
+
+- Fix `PageElements` class initialization when custom page element classes don't have all optional attributes
+
+v3.1.2
+------
+
+*Release date: 2024-02-05*
+
+- Upgrade Pillow version to 10.1.* to fix compatibility with Python 3.12
+
+v3.1.1
+------
+
+*Release date: 2024-02-02*
+
+- Add support for Python 3.12
+- Upgrade Sphinx version from 4.* to 7.* to fix readthedocs theme format
+- Upgrade readthedocs-sphinx-search to 0.3.2 to fix security vulnerability
+- Do not log warning messages when toolium system properties are used
+- Allow to initialize a `PageElements` class with webview attributes
+
 v3.1.0
 ------
 
diff --git a/VERSION b/VERSION
index 701ebec1..fcacf2cb 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.1.1.dev0
+3.1.4.dev0
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 77b8ac80..3a560d62 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
 Sphinx~=7.2
 sphinx_rtd_theme~=1.3
-readthedocs-sphinx-search~=0.3
+readthedocs-sphinx-search~=0.3.2
diff --git a/requirements.txt b/requirements.txt
index e7c89975..281ce90d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
 requests~=2.27            # api tests
 selenium~=4.0             # web tests
 Appium-Python-Client~=2.3 # mobile tests
-Pillow~=9.4               # visual testing
+Pillow~=10.1              # visual testing
 screeninfo~=0.8
-lxml==4.9.2
+lxml~=5.1
 Faker~=18.3
 phonenumbers~=8.13
diff --git a/setup.py b/setup.py
index 641d6f89..94941cc1 100644
--- a/setup.py
+++ b/setup.py
@@ -67,6 +67,7 @@ def get_long_description():
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
         'Topic :: Software Development :: Libraries :: Python Modules',
         'Topic :: Software Development :: Quality Assurance',
         'Topic :: Software Development :: Testing',
diff --git a/toolium/config_parser.py b/toolium/config_parser.py
index 3a9c5598..fc64c35c 100644
--- a/toolium/config_parser.py
+++ b/toolium/config_parser.py
@@ -24,6 +24,11 @@
 logger = logging.getLogger(__name__)
 
 
+SPECIAL_SYSTEM_PROPERTIES = ['TOOLIUM_CONFIG_ENVIRONMENT', 'TOOLIUM_OUTPUT_DIRECTORY', 'TOOLIUM_OUTPUT_LOG_FILENAME',
+                             'TOOLIUM_CONFIG_DIRECTORY', 'TOOLIUM_CONFIG_LOG_FILENAME',
+                             'TOOLIUM_CONFIG_PROPERTIES_FILENAMES', 'TOOLIUM_VISUAL_BASELINE_DIRECTORY']
+
+
 class ExtendedConfigParser(ConfigParser):
     def optionxform(self, optionstr):
         """Override default optionxform in ConfigParser to allow case sensitive options"""
@@ -120,10 +125,10 @@ def update_toolium_system_properties(self, new_properties):
                 if not self.has_section(section):
                     self.add_section(section)
                 self.set(section, option, value)
-            elif property_name.startswith('TOOLIUM'):
+            elif property_name.startswith('TOOLIUM') and property_name not in SPECIAL_SYSTEM_PROPERTIES:
                 logger.warning('A toolium system property is configured but its name does not math with section'
                                ' and option in value (use TOOLIUM_[SECTION]_[OPTION]=[Section]_[option]=value):'
-                               ' %s=%s' % (property_name, property_value))
+                               ' %s=%s', property_name, property_value)
 
     def translate_config_variables(self, str_with_variables):
         """
diff --git a/toolium/pageelements/page_elements.py b/toolium/pageelements/page_elements.py
index 13bcb4b2..60b36862 100644
--- a/toolium/pageelements/page_elements.py
+++ b/toolium/pageelements/page_elements.py
@@ -15,7 +15,8 @@
 See the License for the specific language governing permissions and
 limitations under the License.
 """
-from typing import List, Any
+import inspect
+from typing import Any, List
 
 from toolium.driver_wrapper import DriverWrappersPool
 from toolium.pageelements.button_page_element import Button
@@ -120,11 +121,13 @@ def page_elements(self) -> List[Any]:
             self._page_elements = []
             for order, web_element in enumerate(self.web_elements):
                 # Create multiple PageElement with original locator and order
-                page_element =\
-                    self.page_element_class(self.locator[0], self.locator[1], parent=self.parent,
-                                            order=order, webview=self.webview,
-                                            webview_context_selection_callback=self.webview_context_selection_callback,
-                                            webview_csc_args=self.webview_csc_args)
+                # Optional parameters are passed only if they are defined in the PageElement constructor
+                signature = inspect.signature(self.page_element_class.__init__)
+                opt_names = ['parent', 'webview', 'webview_context_selection_callback', 'webview_csc_args']
+                opt_params = {name: getattr(self, name) for name in opt_names if name in signature.parameters}
+                if 'order' in signature.parameters:
+                    opt_params['order'] = order
+                page_element = self.page_element_class(self.locator[0], self.locator[1], **opt_params)
                 page_element.reset_object(self.driver_wrapper)
                 page_element._web_element = web_element
                 self._page_elements.append(page_element)
diff --git a/toolium/test/pageelements/test_page_elements.py b/toolium/test/pageelements/test_page_elements.py
index c53bd575..eab46ad0 100644
--- a/toolium/test/pageelements/test_page_elements.py
+++ b/toolium/test/pageelements/test_page_elements.py
@@ -36,13 +36,43 @@ def init_page_elements(self):
         self.links = PageElements(By.XPATH, '//a')
         self.inputs_with_parent = PageElements(By.XPATH, '//input', parent=(By.ID, 'parent'))
         self.inputs_with_webview = PageElements(By.XPATH, '//input', webview=True)
-        self.inputs_with_webview_callback = \
-            PageElements(By.XPATH, '//input', webview_context_selection_callback=lambda a, b: (a, b),
-                         webview_csc_args=['WEBVIEW_fake.other', "CDwindow-0123456789"], webview=True)
+        self.inputs_with_webview_callback = PageElements(By.XPATH, '//input',
+                                                         webview_context_selection_callback=lambda a, b: (a, b),
+                                                         webview_csc_args=['WEBVIEW_fake.other', "CDwindow-0123456789"],
+                                                         webview=True)
         self.parent_webview = PageElement(By.XPATH, '//parent', webview=True)
         self.inputs_with_webview_parent = PageElements(By.XPATH, '//input', parent=self.parent_webview, webview=True)
 
 
+class CustomElementAllAttributes(PageElement):
+    def __init__(self, by, value, parent=None, order=None, wait=False, shadowroot=None, webview=False,
+                 webview_context_selection_callback=None, webview_csc_args=None):
+        super(CustomElementAllAttributes, self).__init__(by, value, parent, order, wait, shadowroot, webview,
+                                                         webview_context_selection_callback, webview_csc_args)
+
+
+class CustomElementSomeAttributes(PageElement):
+    def __init__(self, by, value, parent=None, order=None, wait=False, shadowroot=None):
+        super(CustomElementSomeAttributes, self).__init__(by, value, parent, order, wait, shadowroot)
+
+
+class CustomElementMandatoryAttributes(PageElement):
+    def __init__(self, by, value):
+        super(CustomElementMandatoryAttributes, self).__init__(by, value)
+
+
+class LoginWithPageElementsPageObject(PageObject):
+    def init_page_elements(self):
+        self.all_optional_attrs = PageElements(By.XPATH, '//input', page_element_class=CustomElementAllAttributes,
+                                               webview_context_selection_callback=lambda a, b: (a, b),
+                                               webview_csc_args=['WEBVIEW_fake.other', "CDwindow-0123456789"],
+                                               webview=True)
+        self.some_optional_attrs = PageElements(By.XPATH, '//input', page_element_class=CustomElementSomeAttributes,
+                                                parent=(By.ID, 'parent'))
+        self.only_mandatory_attrs = PageElements(By.XPATH, '//input',
+                                                 page_element_class=CustomElementMandatoryAttributes)
+
+
 @pytest.fixture
 def driver_wrapper():
     # Reset wrappers pool values
@@ -171,13 +201,81 @@ def test_reset_object(driver_wrapper):
     assert page_element_21._web_element is not None
 
 
+def test_get_page_elements_custom_element_class_all_optional(driver_wrapper):
+    driver_wrapper.driver.find_elements.return_value = child_elements
+    page_elements = LoginWithPageElementsPageObject().all_optional_attrs.page_elements
+
+    # Check that find_elements has been called just one time
+    driver_wrapper.driver.find_elements.assert_called_once_with(By.XPATH, '//input')
+    driver_wrapper.driver.find_element.assert_not_called()
+
+    # Check that the response is a list of 2 CustomElementAllFields with the expected web element
+    assert len(page_elements) == 2
+    assert isinstance(page_elements[0], CustomElementAllAttributes)
+    assert page_elements[0]._web_element == child_elements[0]
+    assert isinstance(page_elements[1], CustomElementAllAttributes)
+    assert page_elements[1]._web_element == child_elements[1]
+
+    # Check that the optional attributes are set correctly
+    assert page_elements[0].order == 0
+    assert page_elements[0].webview is True
+    assert page_elements[0].webview_context_selection_callback
+    assert page_elements[0].webview_csc_args == ['WEBVIEW_fake.other', "CDwindow-0123456789"]
+    assert page_elements[1].order == 1
+    assert page_elements[1].webview is True
+    assert page_elements[1].webview_context_selection_callback
+    assert page_elements[1].webview_csc_args == ['WEBVIEW_fake.other', "CDwindow-0123456789"]
+
+
+def test_get_page_elements_custom_element_class_some_optional(driver_wrapper):
+    # Create a mock element
+    mock_element = mock.MagicMock(spec=WebElement)
+    mock_element.find_elements.return_value = child_elements
+
+    driver_wrapper.driver.find_element.return_value = mock_element
+    page_elements = LoginWithPageElementsPageObject().some_optional_attrs.page_elements
+
+    # Check that find_elements has been called just one time
+    driver_wrapper.driver.find_element.assert_called_once_with(By.ID, 'parent')
+    mock_element.find_elements.assert_called_once_with(By.XPATH, '//input')
+
+    # Check that the response is a list of 2 CustomElementSomeAttributes with the expected web element
+    assert len(page_elements) == 2
+    assert isinstance(page_elements[0], CustomElementSomeAttributes)
+    assert page_elements[0]._web_element == child_elements[0]
+    assert isinstance(page_elements[1], CustomElementSomeAttributes)
+    assert page_elements[1]._web_element == child_elements[1]
+
+    # Check that the optional attributes are set correctly
+    assert page_elements[0].order == 0
+    assert page_elements[0].parent == (By.ID, 'parent')
+    assert page_elements[1].order == 1
+    assert page_elements[0].parent == (By.ID, 'parent')
+
+
+def test_get_page_elements_custom_element_class_only_mandatory(driver_wrapper):
+    driver_wrapper.driver.find_elements.return_value = child_elements
+    page_elements = LoginWithPageElementsPageObject().only_mandatory_attrs.page_elements
+
+    # Check that find_elements has been called just one time
+    driver_wrapper.driver.find_elements.assert_called_once_with(By.XPATH, '//input')
+    driver_wrapper.driver.find_element.assert_not_called()
+
+    # Check that the response is a list of 2 CustomElementMandatoryAttributes with the expected web element
+    assert len(page_elements) == 2
+    assert isinstance(page_elements[0], CustomElementMandatoryAttributes)
+    assert page_elements[0]._web_element == child_elements[0]
+    assert isinstance(page_elements[1], CustomElementMandatoryAttributes)
+    assert page_elements[1]._web_element == child_elements[1]
+
+
 def test_get_page_elements_without_webview(driver_wrapper):
     driver_wrapper.driver.find_elements.return_value = child_elements
     page_elements = LoginPageObject().inputs.page_elements
 
     # Check webview attribute is set to false by default in child elements
-    assert not page_elements[0].webview
-    assert not page_elements[1].webview
+    assert page_elements[0].webview is False
+    assert page_elements[1].webview is False
 
 
 def test_get_page_elements_with_webview(driver_wrapper):
@@ -186,8 +284,8 @@ def test_get_page_elements_with_webview(driver_wrapper):
 
     # Check webview attribute is set to true in child element when a Pagelements element
     # is created with the webview attribute
-    assert page_elements[0].webview
-    assert page_elements[1].webview
+    assert page_elements[0].webview is True
+    assert page_elements[1].webview is True
 
 
 def test_get_page_elements_with_context_selection_callback_provided(driver_wrapper):
@@ -196,9 +294,9 @@ def test_get_page_elements_with_context_selection_callback_provided(driver_wrapp
 
     # Check context selection callback provided is set correctly to pageelements
     assert page_elements[0].webview_context_selection_callback
-    assert page_elements[0].webview_csc_args
+    assert page_elements[0].webview_csc_args == ['WEBVIEW_fake.other', "CDwindow-0123456789"]
     assert page_elements[1].webview_context_selection_callback
-    assert page_elements[1].webview_csc_args
+    assert page_elements[1].webview_csc_args == ['WEBVIEW_fake.other', "CDwindow-0123456789"]
 
 
 def test_mobile_automatic_context_selection_switch_to_new_webview_context_in_pagelements_without_parent(driver_wrapper):
diff --git a/toolium/test/test_config_parser.py b/toolium/test/test_config_parser.py
index c751d21d..44ca2a32 100644
--- a/toolium/test/test_config_parser.py
+++ b/toolium/test/test_config_parser.py
@@ -16,8 +16,9 @@
 limitations under the License.
 """
 
-import mock
 import os
+
+import mock
 import pytest
 
 from toolium.config_parser import ExtendedConfigParser
@@ -285,11 +286,35 @@ def test_update_toolium_system_properties_wrong_format(config, logger, property_
     if property_name.startswith('TOOLIUM'):
         logger.warning.assert_called_once_with('A toolium system property is configured but its name does not math with'
                                                ' section and option in value (use TOOLIUM_[SECTION]_[OPTION]=[Section]_'
-                                               '[option]=value): %s=%s' % (property_name, property_value))
+                                               '[option]=value): %s=%s', property_name, property_value)
     else:
         logger.warning.assert_not_called()
 
 
+toolium_system_properties_special = (
+    ('TOOLIUM_CONFIG_ENVIRONMENT', 'value1'),
+    ('TOOLIUM_OUTPUT_DIRECTORY', 'value2'),
+    ('TOOLIUM_OUTPUT_LOG_FILENAME', 'value3'),
+    ('TOOLIUM_CONFIG_DIRECTORY', 'value4'),
+    ('TOOLIUM_CONFIG_LOG_FILENAME', 'value5'),
+    ('TOOLIUM_CONFIG_PROPERTIES_FILENAMES', 'value6'),
+    ('TOOLIUM_VISUAL_BASELINE_DIRECTORY', 'value7'),
+)
+
+
+@pytest.mark.parametrize("property_name, property_value", toolium_system_properties_special)
+def test_update_toolium_system_properties_special(config, logger, property_name, property_value):
+    # Change system property and update config
+    environment_properties.append(property_name)
+    os.environ[property_name] = property_value
+    previous_config = config.deepcopy()
+    config.update_toolium_system_properties(os.environ)
+
+    # Check that config has not been updated and error message is not logged
+    assert previous_config == config, 'Config has been updated'
+    logger.warning.assert_not_called()
+
+
 def test_update_properties_behave(config):
     section = 'Capabilities'
     option = 'platformName'
diff --git a/toolium/test/utils/test_dataset_map_param.py b/toolium/test/utils/test_dataset_map_param.py
index 817f516d..6e9e3d7f 100644
--- a/toolium/test/utils/test_dataset_map_param.py
+++ b/toolium/test/utils/test_dataset_map_param.py
@@ -212,6 +212,22 @@ def test_a_poe_param_single_result():
     assert result == expected
 
 
+def test_a_poe_param_with_empty_definition_single_result():
+    """
+    Verification of a POE mapped parameter with empty definition
+    """
+    dataset.poeditor_terms = [
+        {
+            "term": "Poniendo mute",
+            "definition": "",
+            "reference": "home:home.tv.mute",
+        }
+    ]
+    result = map_param('[POE:home.tv.mute]')
+    expected = ""
+    assert result == expected
+
+
 def test_a_poe_param_no_result_assertion():
     """
     Verification of a POE mapped parameter without result
@@ -228,6 +244,39 @@ def test_a_poe_param_no_result_assertion():
     assert "No translations found in POEditor for reference home.tv.off" in str(excinfo.value)
 
 
+def test_a_poe_param_with_no_definition_no_result_assertion_():
+    """
+    Verification of a POE mapped parameter without definition and without result
+    """
+    dataset.poeditor_terms = [
+        {
+            "term": "Poniendo mute",
+            "definition": None,
+            "reference": "home:home.tv.mute",
+        }
+    ]
+    with pytest.raises(Exception) as excinfo:
+        map_param('[POE:home.tv.mute]')
+    assert "No translations found in POEditor for reference home.tv.mute" in str(excinfo.value)
+
+
+def test_a_poe_param_with_empty_definition_no_result_assertion():
+    """
+    Verification of a POE mapped parameter with empty definition and without result (configured ignore_empty)
+    """
+    dataset.project_config = {'poeditor': {'key_field': 'reference', 'search_type': 'contains', 'ignore_empty': True}}
+    dataset.poeditor_terms = [
+        {
+            "term": "Poniendo mute",
+            "definition": "",
+            "reference": "home:home.tv.mute",
+        }
+    ]
+    with pytest.raises(Exception) as excinfo:
+        map_param('[POE:home.tv.mute]')
+    assert "No translations found in POEditor for reference home.tv.mute" in str(excinfo.value)
+
+
 def test_a_poe_param_prefix_with_no_definition():
     """
     Verification of a POE mapped parameter with a single result for a reference
diff --git a/toolium/test_cases.py b/toolium/test_cases.py
index b8a702ee..b20a3487 100644
--- a/toolium/test_cases.py
+++ b/toolium/test_cases.py
@@ -73,7 +73,7 @@ def tearDown(self):
                 error_message = get_error_message_from_exception(exception)
         elif not hasattr(self._outcome, 'errors') and hasattr(self._outcome.result, 'failures') \
                 and len(self._outcome.result.failures) > 0:
-            # Python 3.11
+            # Python >=3.11
             traceback = self._outcome.result.failures[0][1]
             error_message = get_error_message_from_traceback(traceback)
 
diff --git a/toolium/utils/dataset.py b/toolium/utils/dataset.py
index 757e63a5..0fc75c37 100644
--- a/toolium/utils/dataset.py
+++ b/toolium/utils/dataset.py
@@ -690,6 +690,8 @@ def get_translation_by_poeditor_reference(reference, poeditor_terms):
     poeditor_config = project_config['poeditor'] if project_config and 'poeditor' in project_config else {}
     key = poeditor_config['key_field'] if 'key_field' in poeditor_config else 'reference'
     search_type = poeditor_config['search_type'] if 'search_type' in poeditor_config else 'contains'
+    ignore_empty = poeditor_config['ignore_empty'] if 'ignore_empty' in poeditor_config else False
+    ignored_definitions = [None, ''] if ignore_empty else [None]
     # Get POEditor prefixes and add no prefix option
     poeditor_prefixes = poeditor_config['prefixes'] if 'prefixes' in poeditor_config else []
     poeditor_prefixes.append('')
@@ -702,10 +704,10 @@ def get_translation_by_poeditor_reference(reference, poeditor_terms):
             complete_reference = '%s%s' % (prefix, reference)
         if search_type == 'exact':
             translation = [term['definition'] for term in poeditor_terms
-                           if complete_reference == term[key] and term['definition'] is not None]
+                           if complete_reference == term[key] and term['definition'] not in ignored_definitions]
         else:
             translation = [term['definition'] for term in poeditor_terms
-                           if complete_reference in term[key] and term['definition'] is not None]
+                           if complete_reference in term[key] and term['definition'] not in ignored_definitions]
         if len(translation) > 0:
             break
     assert len(translation) > 0, 'No translations found in POEditor for reference %s' % reference
diff --git a/toolium/utils/poeditor.py b/toolium/utils/poeditor.py
index 328d0265..b34bb039 100644
--- a/toolium/utils/poeditor.py
+++ b/toolium/utils/poeditor.py
@@ -46,6 +46,7 @@
     "prefixes": [],
     "key_field": "reference",
     "search_type": "contains",
+    "ignore_empty": False,
     "file_path": "output/poeditor_terms.json",
     "mode": "online"
 }