After deleting the sigma folder, I was able to enter multiplayer after freezing for 20 seconds

but console gives errors:

10:39:31.612

java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@3b74e3ff rejected from java.util.concurrent.ScheduledThreadPoolExecutor@64838958[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0]

Can't ping example: Timed out

10:40:03.019
java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@6e4b9f21 rejected from java.util.concurrent.ScheduledThreadPoolExecutor@647c61db[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0]

Can't ping example: Timed out
10:40:03.049
java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@57a40846 rejected from java.util.concurrent.ScheduledThreadPoolExecutor@647c61db[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0]

Can't ping example: Timed out
10:41:09.815
java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@39233137 rejected from java.util.concurrent.ScheduledThreadPoolExecutor@647c61db[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0]

And new errors appear after trying to ping other servers