9pm your local time is midnight GMT, which is when the servers do their daily maintenance. If it takes too long, you’ll be disconnected. I haven’t looked at how long maintenance takes, I’ll investigate.
Fixed in v.94 
Bug
9pm your local time is midnight GMT, which is when the servers do their daily maintenance. If it takes too long, you’ll be disconnected. I haven’t looked at how long maintenance takes, I’ll investigate.
Fixed in v.94 Bug