Every time my Windows desktop goes to sleep for a few hours, when I come back I have this error that is spammed into the console and it is very annoying ... [Collab] ExternalAPI::Failure: Authorization token has expired The only way to get rid of these is to restart Unity. So I restart Unity twice a day at least, for months ... You should have a discreet solution for renew the token IMHO. Plus Unity UI tells me that I'm still logged in, I do not understand the issue. Collab is using another authentication system ? Have a nice day Unity teams!