SOLVED: Access to the path is denied

[shagy1337]

Hello,
I am quite a bit out of my dept here. E.g. I have never used docker before.

I am trying to set up Jellyfin on Synology DS423, DSM 7.2.1
I used this guide for installation.
Libraries in Jellyfin are set up and pointed to the correct folders. But nothing is showing up in the libraries. And scanning doesn't seem to be able to start.

From what I see in the log, seem to be an access issue.
Here is the log

Code:

[2023-12-31 08:28:06.176 +00:00] [INF] [21] Emby.Server.Implementations.HttpServer.WebSocketManager: WS "172.17.0.1" request
[2023-12-31 08:28:11.910 +00:00] [INF] [120] Emby.Server.Implementations.ScheduledTasks.TaskManager: Executing "Scan Media Library"
[2023-12-31 08:28:11.911 +00:00] [INF] [120] Emby.Server.Implementations.Library.LibraryManager: Validating media library
[2023-12-31 08:28:11.944 +00:00] [ERR] [122] Emby.Server.Implementations.Library.LibraryManager: Error running post-scan task
System.ArgumentException: Not enough valid pictures provided to create a splashscreen!
  at Jellyfin.Drawing.Skia.SplashscreenBuilder.GenerateCollage(IReadOnlyList`1 posters, IReadOnlyList`1 backdrops)
  at Jellyfin.Drawing.Skia.SplashscreenBuilder.GenerateSplash(IReadOnlyList`1 posters, IReadOnlyList`1 backdrops, String outputPath)
  at Jellyfin.Drawing.Skia.SkiaEncoder.CreateSplashscreen(IReadOnlyList`1 posters, IReadOnlyList`1 backdrops)
  at Emby.Server.Implementations.Library.SplashscreenPostScanTask.Run(IProgress`1 progress, CancellationToken cancellationToken)
  at Emby.Server.Implementations.Library.LibraryManager.RunPostScanTasks(IProgress`1 progress, CancellationToken cancellationToken)
[2023-12-31 08:28:11.946 +00:00] [INF] [122] Emby.Server.Implementations.ScheduledTasks.TaskManager: "Scan Media Library" Completed after 0 minute(s) and 0 seconds
[2023-12-31 08:28:11.946 +00:00] [ERR] [120] Emby.Server.Implementations.IO.LibraryMonitor: Error in Directory watcher for: "/tvshows"
System.UnauthorizedAccessException: Access to the path '/tvshows' is denied.
---> System.IO.IOException: Permission denied
  --- End of inner exception stack trace ---
[2023-12-31 08:28:11.946 +00:00] [INF] [120] Emby.Server.Implementations.IO.LibraryMonitor: Stopping directory watching for path "/tvshows"
[2023-12-31 08:28:11.947 +00:00] [INF] [122] Emby.Server.Implementations.ScheduledTasks.TaskManager: ExecuteQueuedTasks
[2023-12-31 08:28:11.981 +00:00] [INF] [120] Emby.Server.Implementations.IO.LibraryMonitor: Watching directory "/tvshows"
[2023-12-31 08:28:42.905 +00:00] [INF] [72] Emby.Server.Implementations.ScheduledTasks.TaskManager: Executing "Scan Media Library"
[2023-12-31 08:28:42.905 +00:00] [INF] [72] Emby.Server.Implementations.Library.LibraryManager: Validating media library
[2023-12-31 08:28:42.942 +00:00] [ERR] [96] Emby.Server.Implementations.Library.LibraryManager: Error running post-scan task
System.ArgumentException: Not enough valid pictures provided to create a splashscreen!
  at Jellyfin.Drawing.Skia.SplashscreenBuilder.GenerateCollage(IReadOnlyList`1 posters, IReadOnlyList`1 backdrops)
  at Jellyfin.Drawing.Skia.SplashscreenBuilder.GenerateSplash(IReadOnlyList`1 posters, IReadOnlyList`1 backdrops, String outputPath)
  at Jellyfin.Drawing.Skia.SkiaEncoder.CreateSplashscreen(IReadOnlyList`1 posters, IReadOnlyList`1 backdrops)
  at Emby.Server.Implementations.Library.SplashscreenPostScanTask.Run(IProgress`1 progress, CancellationToken cancellationToken)
  at Emby.Server.Implementations.Library.LibraryManager.RunPostScanTasks(IProgress`1 progress, CancellationToken cancellationToken)
[2023-12-31 08:28:42.944 +00:00] [INF] [96] Emby.Server.Implementations.ScheduledTasks.TaskManager: "Scan Media Library" Completed after 0 minute(s) and 0 seconds
[2023-12-31 08:28:42.944 +00:00] [ERR] [115] Emby.Server.Implementations.IO.LibraryMonitor: Error in Directory watcher for: "/tvshows"
System.UnauthorizedAccessException: Access to the path '/tvshows' is denied.
---> System.IO.IOException: Permission denied
  --- End of inner exception stack trace ---
[2023-12-31 08:28:42.944 +00:00] [INF] [115] Emby.Server.Implementations.IO.LibraryMonitor: Stopping directory watching for path "/tvshows"
[2023-12-31 08:28:42.945 +00:00] [INF] [96] Emby.Server.Implementations.ScheduledTasks.TaskManager: ExecuteQueuedTasks
[2023-12-31 08:28:42.979 +00:00] [INF] [115] Emby.Server.Implementations.IO.LibraryMonitor: Watching directory "/tvshows"