Cannot read property 'timer' of undefined

[kmpm]

error: plc-easyip easyip error: message=timeout, counter=62008, address=127.0.0.1, port=995

/home/sysadmin/projekt/node-easyip/easyip.js:52
clearTimeout(request_dict[packet.header.COUNTER].timer);
^
TypeError: Cannot read property 'timer' of undefined
at Service._gotRes (/home/sysadmin/projekt/node-easyip/easyip.js:52:51)
at Socket. (/home/sysadmin/projekt/node-easyip/easyip.js:102:6)
at Socket.emit (events.js:70:17)
at UDP.onMessage as onmessage