I see im not the only one having this problem (different server, same issue)
Just wondering.. have you checked your output log file? (\SteamLibrary\steamapps\common\7 Days To Die\7DaysToDie_Data) Wondering if your problem is at the same location as mine..
Here is what mine shows...
"2022-01-29T13:55:45 76.045 INF Allowed ChunkViewDistance: 6
NullReferenceException: Object reference not set to an instance of an object
at GameManager.PlayerId (System.Int32 _playerId, System.Int32 _teamNumber, PlayerDataFile _playerDataFile, System.Int32 _chunkViewDim) [0x0005d] in <c86f272aec0d4f97b156393ba4e8f703>:0
at NetPackagePlayerId.ProcessPackage (World _world, GameManager _callbacks) [0x00000] in <c86f272aec0d4f97b156393ba4e8f703>:0
at ConnectionManager.ProcessPackages (INetConnection _connection, NetPackageDirection _disallowedDirection, ClientInfo _clientInfo) [0x000c8] in <c86f272aec0d4f97b156393ba4e8f703>:0
at ConnectionManager.Update () [0x000f6] in <c86f272aec0d4f97b156393ba4e8f703>:0 "
Right after the ChunkViewDistance:6 is where my error hits every time.
Strange thing for me was i was online playing on the server (DeadLights), the server did its hourly reboot, when it finished i tried to log back on and started getting that error.