Hangups recently stopped working 90% of the time

[horga83]

Hangups has become unusable as of about 2 weeks ago approximately.
Somtimes I can send a few messages, other times it crashes and other times it says "failed to send message"
I have tried on Debian and Arch, doesn't seem to be distribution specific.
Not sure what is going on my I now have crashes all the time with hangups and lots of this is the log:

2020-09-04 10:17:55,594 - hangups.client - WARNING - Failed to set active client: Request return unexpected status: 401:
Unauthorized
2020-09-04 10:19:45,726 - hangups.channel - WARNING - Long-polling request failed: Request return unexpected status: 401
: Unauthorized
2020-09-04 10:20:27,426 - hangups.conversation - WARNING - Failed to request missing users: Request return unexpected st
status: 401: Unauthorized
2020-09-04 10:20:27,755 - hangups.user - WARNING - Adding fallback User with real name "John Smith"
2020-09-04 21:27:58,534 - hangups.conversation - WARNING - Failed to sync events, some events may be lost: Request retur
n unexpected status: 401: Unauthorized
2020-09-04 21:28:14,441 - hangups.client - WARNING - Failed to find email address: Request return unexpected status: 401
: Unauthorized
2020-09-04 21:28:35,192 - hangups.conversation - WARNING - Failed to send message: Request return unexpected status: 401
: Unauthorized

[tdryer]

See #498.