After some days of work - matrix-puppet-hangouts bridge show the errors in logs:
10:08
WARNING:hangups.channel:Long-polling request failed: Request connection error: Response payload is not completed
10:08
WARNING:hangups.channel:retry attempt count is now 1
10:08
WARNING:hangups.channel:Long-polling request failed: SID became invalid
10:08
WARNING:hangups.channel:retry attempt count is now 2
After this - when I try to send message - it show error:
16:16
Message send failure! Exception: Session is closed
Restarting bridge solve the problem. Can I fix this problem without full restarting of puppet?