Hey
I'm making a program that i call "CheatyCheater".
It is a webbrowser designed to make it easier to cheat on tests. (electronic tests).
When i press a button, the first webbrowser is hidden, and a new one appears.

The second browser is ment to be a groupchat for the class. So we can exchange awnsers.
However when i press the button, and the second browser navigates to the chat-website the following error appears: (Error is translated from norwegian an may not be 100% accurate)

Script error
An error has occurred in the script on this page.
Line: 36
Sign: 3
Error: Invalid Argument
Kode: 0
URL: https://chatstep.com/file.js

How can i get rid of this error? I need to get this working!
The site seemed perfect for the purpose i want!