A simple fix to Error 401

[njargh]

Go to advanced settings, erase the AuthKey.
Then do that (on firefox): https://github.com/victornpb/undiscord/wiki/authToken

Press F12 to open developer tools.
Open the Network tab.
Select XHR.
Type api/ in the filter box.
Click on any request in the list, and then select the Headers tab in the side panel.
You're looking for something like this -> authorization: MTX5MzQ1MjAyMjU0NjA2MzM2.ROFLMAO.UvqZqBMXLpDuOY3Z456J3JRIfbk.

This fixes the issue