SOLVED: Crash on startup!

[Pēteris Kārkliņš]

Please help a grown man with knowledge in servers of a 5YO!

I run my Jellyfin on a separate Windows PC. All of a sudden it (JF server) started to shut down on startup. It starts up with a computer and then stops.
When I try to connect to JF it just says "We're unable to connect to the selected server right now. Please ensure it is running and try again."... because It has already stopped...

Device name Server
Processor Intel® Core™ i5-3330 CPU @ 3.00GHz  3.00 GHz
Installed RAM 16,0 GB
Device ID 5AFB5F97-36BD-4A38-AA1B-C24D8EFB5EF3
Product ID 00330-80000-00000-AA786
System type 64-bit operating system, x64-based processor

Edition Windows 10 Pro
Version 22H2
Installed on ‎06.‎11.‎2022
OS build 19045.3693
Experience Windows Feature Experience Pack 1000.19053.1000.0

JellyFin 10.8.7

Please comment on what I've missed to add to this post.

Here's the log. I hope I copied the right portion.

[2023-11-26 00:13:21.803 +02:00] [INF] [12] Emby.Server.Implementations.IO.LibraryMonitor: Watching directory "F:\Videos"
[2023-11-26 00:13:21.879 +02:00] [FTL] [1] Main: Error while starting server.
System.Net.Http.HttpRequestException: Response status code does not indicate success: 451 (Unavailable For Legal Reasons).
  at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode()
  at System.Net.Http.HttpClient.GetStreamAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken)
  at n0tFlix.Plugin.YoutubeDL.YoutubeDlEntryPoint.RunAsync()
  at Emby.Server.Implementations.ApplicationHost.RunStartupTasksAsync(CancellationToken cancellationToken)
  at Jellyfin.Server.Program.StartApp(StartupOptions options)
[2023-11-26 00:13:21.897 +02:00] [INF] [1] Main: Running query planner optimizations in the database... This might take a while
[2023-11-26 00:13:21.910 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "CoreAppHost"
[2023-11-26 00:13:21.912 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "EventMonitorEntryPoint"
[2023-11-26 00:13:21.914 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "TvdbMissingEpisodeProvider"
[2023-11-26 00:13:21.918 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "EntryPoint"
[2023-11-26 00:13:21.919 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "UdpServerEntryPoint"
[2023-11-26 00:13:21.922 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "LibraryChangedNotifier"
[2023-11-26 00:13:21.926 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "ExternalPortForwarding"
[2023-11-26 00:13:21.928 +02:00] [INF] [1] Emby.Server.Implementations.EntryPoints.ExternalPortForwarding: Stopping NAT discovery
[2023-11-26 00:13:21.933 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "DeviceAccessEntryPoint"
[2023-11-26 00:13:21.936 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "RecordingNotifier"
[2023-11-26 00:13:21.939 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "CoverArtArchiveImageProvider"
[2023-11-26 00:13:21.942 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "RecordingsChannel"
[2023-11-26 00:13:21.944 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "UserDataChangeNotifier"
[2023-11-26 00:13:21.946 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "LibraryMonitorStartup"
[2023-11-26 00:13:21.949 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "TMDbBoxSetManager"
[2023-11-26 00:13:21.951 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "EmbyTV"
[2023-11-26 00:13:21.954 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "EntryPoint"
[2023-11-26 00:13:21.956 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "MusicBrainzAlbumProvider"
[2023-11-26 00:13:21.958 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "SchedulesDirect"
[2023-11-26 00:13:21.960 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "YoutubeDlEntryPoint"
[2023-11-26 00:13:21.961 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "NotificationEntryPoint"
[2023-11-26 00:13:21.965 +02:00] [INF] [1] Emby.Server.Implementations.ApplicationHost: Disposing "DlnaEntryPoint"
[2023-11-26 00:13:21.967 +02:00] [INF] [1] Emby.Dlna.Main.DlnaEntryPoint: Disposing PlayToManager
[2023-11-26 00:13:21.970 +02:00] [INF] [1] Emby.Dlna.Main.DlnaEntryPoint: Disposing DeviceDiscovery
[2023-11-26 00:13:21.972 +02:00] [INF] [1] Emby.Dlna.Main.DlnaEntryPoint: Disposing SsdpCommunicationsServer
[2023-11-26 00:13:21.978 +02:00] [INF] [2] Main: Received a SIGTERM signal, shutting down

[TheDreadPirate]

Looks like this plugin is breaking your Jellyfin.

n0tFlix.Plugin.YoutubeDL

[Pēteris Kārkliņš]

Thank you! Removed the plugin and now it works again!!! Thank god, that was such an easy fix!!
Have a nice day sir!