Error Jellyfin Docker container is "unhealthy,"

[Yaichi_JK]

The logs indicate that the Jellyfin server encountered an unhandled exception related to WebSocket connections, specifically an
ArgumentOutOfRangeException
. This exception suggests that the server attempted to access an index in a collection that does not exist, which led to the crash.

Code:

[23:46:27] [INF] [297] Emby.Server.Implementations.HttpServer.WebSocketManager: WS 187.189.246.111 closed
[23:55:06] [INF] [310] Emby.Server.Implementations.HttpServer.WebSocketManager: WS 187.189.246.111 request
[23:55:18] [INF] [303] Emby.Server.Implementations.HttpServer.WebSocketManager: WS 187.189.246.111 request
[23:57:21] [INF] [298] Jellyfin.Api.Helpers.MediaInfoHelper: User policy for Anime. EnablePlaybackRemuxing: True EnableVideoPlaybackTranscoding: True EnableAudioPlaybackTranscoding: True
[23:57:54] [INF] [310] Emby.Server.Implementations.Session.SessionWebSocketListener: Sending ForceKeepAlive message to 1 inactive WebSockets.
[23:59:06] [WRN] [301] Emby.Server.Implementations.HttpServer.WebSocketConnection: WS 187.189.246.111 error receiving data: The remote party closed the WebSocket connection without completing the close handshake.
[23:59:06] [WRN] [298] Emby.Server.Implementations.HttpServer.WebSocketConnection: WS 187.189.246.111 error receiving data: The remote party closed the WebSocket connection without completing the close handshake.
[23:59:06] [INF] [298] Emby.Server.Implementations.HttpServer.WebSocketManager: WS 187.189.246.111 closed
[23:59:06] [INF] [301] Emby.Server.Implementations.HttpServer.WebSocketManager: WS 187.189.246.111 closed
[23:59:06] [FTL] [301] Main: Unhandled Exception
System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. (Parameter 'index')
  at Emby.Server.Implementations.Session.WebSocketController.OnConnectionClosed(Object sender, EventArgs e)
  at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_1(Object state)
  at System.Threading.QueueUserWorkItemCallback.Execute()
  at System.Threading.ThreadPoolWorkQueue.Dispatch()
  at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()
Unhandled exception. System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. (Parameter 'index')
  at Emby.Server.Implementations.Session.WebSocketController.OnConnectionClosed(Object sender, EventArgs e)
  at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_1(Object state)
  at System.Threading.QueueUserWorkItemCallback.Execute()
  at System.Threading.ThreadPoolWorkQueue.Dispatch()
  at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()

[TheDreadPirate]

Can you describe your setup. OS, specs, if you're using docker compose can you share the compose file.

And share your full jellyfin log via pastebin.

[Yaichi_JK]

jellyfin 1.9.9 version docker pull jellyfin/jellyfin

Using rclone Google Drive as mounted storage on a folder on a vps
deleting the cache folder from time to time
I have been using this method for a long time

Storage: 80GB
RAM: 16GB
CPU: 10 cores
Network: 1Gbps
Ubuntu 24.04 LTS
-----------------------------------------
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 48 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 10
On-line CPU(s) list: 0-9
Vendor ID: AuthenticAMD
Model name: AMD EPYC-Milan Processor
CPU family: 25
Model: 1
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 10
Stepping: 1
BogoMIPS: 8399.96

[TheDreadPirate]

What client are you using when this happens? Can you provide your full jellyfin log via pastebin? Preferably one that includes the Jellyfin startup.

[Yaichi_JK]

Can you describe your setup.  OS, specs, if you're using docker compose can you share the compose file.

And share your full jellyfin log via pastebin.

What client are you using when this happens?  Can you provide your full jellyfin log via pastebin?  Preferably one that includes the Jellyfin startup.

I already deleted everything and had to rebuild, this happened to me a month ago and I no longer have any record.