diff --git a/packages/main/src/pages/Error.tsx b/packages/main/src/pages/Error.tsx
index 1be369ad..bba53cd9 100644
--- a/packages/main/src/pages/Error.tsx
+++ b/packages/main/src/pages/Error.tsx
@@ -1,3 +1,4 @@
+import { Header } from "ui";
 import { useParams } from "react-router-dom";
 
 const string: { [key: string]: string } = {
@@ -5,14 +6,15 @@ const string: { [key: string]: string } = {
   401: "Unauthorized",
   403: "Forbidden",
   404: "Not found",
-  unsigned: "Unsigned Error",
+  unsigned: "Unsigned Error"
 };
 
 export const Error = () => {
   const { code } = useParams();
 
   return (
-    <div className="col-flex flex-center size-full">
+    <div className="col-flex flex-center w-full h-screen relative">
+      <Header className="absolute top-0" />
       <span className="text-[7rem] font-black">{code}</span>
       <span className="text-[1.5rem] font-medium">
         {string[code || "unsigned"]}
diff --git a/packages/main/src/pages/Pdf/LibraryView.tsx b/packages/main/src/pages/Pdf/LibraryView.tsx
index e68e1931..4683803e 100644
--- a/packages/main/src/pages/Pdf/LibraryView.tsx
+++ b/packages/main/src/pages/Pdf/LibraryView.tsx
@@ -32,7 +32,11 @@ export const LibraryView = () => {
           ) : (
             <Page pageIndex={page - 1} className="w-fit h-fit" width={450} />
           )}
-          <Page pageIndex={page} className="w-fit h-fit" width={450} />
+          {page === max ? (
+            <div className="w-[450px] h-full" />
+          ) : (
+            <Page pageIndex={page} className="w-fit h-fit" width={450} />
+          )}
         </Document>
         <Box
           width="100%"
diff --git a/packages/main/src/router/Layout/components/Modal.tsx b/packages/main/src/router/Layout/components/Modal.tsx
index c881eb9c..dedc6dca 100644
--- a/packages/main/src/router/Layout/components/Modal.tsx
+++ b/packages/main/src/router/Layout/components/Modal.tsx
@@ -40,9 +40,7 @@ export const Modal = ({ opened, setOpened }: IProp) => {
         <div
           className="relative w-96 h-12 rounded-md bg-[#2E2E2E] flex gap-6 items-center cursor-pointer"
           onClick={() =>
-            window.localStorage.replace(
-              `${process.env.VITE_APP_URL_STUDENT}/login`
-            )
+            window.location.replace(`${process.env.VITE_APP_URL_TEACHER}/login`)
           }
         >
           <div className="rounded-l-md bg-black w-[70px] h-full flex flex-center">
diff --git a/packages/main/src/router/Layout/index.tsx b/packages/main/src/router/Layout/index.tsx
index a449a97a..fc65dffb 100644
--- a/packages/main/src/router/Layout/index.tsx
+++ b/packages/main/src/router/Layout/index.tsx
@@ -1,16 +1,18 @@
 import { Header, Modal } from "./components";
-import { Outlet } from "react-router-dom";
 import { useState } from "react";
 export * from "./ViewLayout";
 
-export const Layout = () => {
+interface IProp {
+  children: React.ReactElement | React.ReactElement[];
+}
+export const Layout = ({ children }: IProp) => {
   const [opened, setOpened] = useState(false);
 
   return (
     <div className="w-full h-screen bg-gray-900">
       <Header setOpened={setOpened} />
       <Modal opened={opened} setOpened={setOpened} />
-      <Outlet />
+      {children}
     </div>
   );
 };
diff --git a/packages/main/src/router/index.tsx b/packages/main/src/router/index.tsx
index d4fd970d..2237a3cd 100644
--- a/packages/main/src/router/index.tsx
+++ b/packages/main/src/router/index.tsx
@@ -6,10 +6,14 @@ export const Router = () => {
   return (
     <BrowserRouter>
       <Routes>
-        <Route path="/" element={<Layout />}>
-          <Route path="" element={<_.Landing />} />
-          <Route path="error/:code" element={<_.Error />} />
-        </Route>
+        <Route
+          path="/"
+          element={
+            <Layout>
+              <_.Landing />
+            </Layout>
+          }
+        />
         <Route path="/render/">
           <Route path="all/:year/:grade" element={<_.Book />} />
           <Route path="specific/:id" element={<_.Specific />} />
@@ -18,6 +22,7 @@ export const Router = () => {
           <Route path="teacher/:id" element={<_.TeacherView />} />
           <Route path="library/:id" element={<_.LibraryView />} />
         </Route>
+        <Route path="error/:code" element={<_.Error />} />
         <Route path="/*" element={<Navigate to="/error/404" />} />
       </Routes>
     </BrowserRouter>
diff --git a/packages/teacher/src/page/Library/Button.tsx b/packages/teacher/src/page/Library/Button.tsx
index a9ec705c..9fb17f7d 100644
--- a/packages/teacher/src/page/Library/Button.tsx
+++ b/packages/teacher/src/page/Library/Button.tsx
@@ -9,7 +9,7 @@ interface IProp {
 
 const navigate = (id: string) =>
   window.location.replace(
-    `${process.env._VITE_APP_URL_MAIN}/library/${id}?prev=${window.location.href}`
+    `http://localhost:3000/viewer/library/${id}?prev=${window.location.href}`
   );
 
 export const Button = ({ id, year, grade, generation }: IProp) => {