10.11.5 doesn't boot up from restart with this plugin installed alongside OpenSubtitles

[iammarxg]

EDIT: Turns out the issue is because I had the default OpenSubtitles plugin installed. You have to remove it (steps at the end for Ubuntu) for subbuzz to work. You cannot have both plugins enabled in 10.11, as you did in 10.10.x. Doesn't matter because subbuzz has support for OpenSubtitles!

I will keep this issue open in case the developer wants to fix the issue, otherwise I believe it should be closed.

Original issue below (with the modification of the remove plugin step of the solution section).

I added the repo, installed the plugin, restarted jellyfin and now jellyfin wont boot back up (2nd time it happened, first time I deleted jellyfin thinking I corrupted the database).

OS: Ubuntu 24.04 LTS
Jellyfin Version: 10.11.5
Repo added: For 10.11

Idk if these logs will be useful. I don't have any music on Jellyfin.

ammar@hosted:~$ sudo systemctl status jellyfin.service
[sudo] password for ammar:
○ jellyfin.service - Jellyfin Media Server
     Loaded: loaded (/usr/lib/systemd/system/jellyfin.service; enabled; preset: enabled)
    Drop-In: /etc/systemd/system/jellyfin.service.d
             └─jellyfin.service.conf
     Active: inactive (dead) since Thu 2026-01-08 18:08:10 +03; 7min ago
   Duration: 3d 20h 37min 39.191s
    Process: 251044 ExecStart=/usr/bin/jellyfin $JELLYFIN_WEB_OPT $JELLYFIN_FFMPEG_OPT $JELLYFIN_SERVICE_OPT $JELLYFIN_NOWEBAPP_OPT $JELLYFIN_ADDITIONAL_OPTS (code=exited, status=0/SUCCESS)
   Main PID: 251044 (code=exited, status=0/SUCCESS)
        CPU: 19h 59min 33.188s

Jan 08 18:08:10 hosted jellyfin[251044]:    at Microsoft.Extensions.Hosting.Internal.Host.ForeachService[T](IEnumerable`1 services, CancellationToken token, Boolean concurrent, Boolean abortOnFirstException, List`1 exceptions, Func`3 operation)
Jan 08 18:08:10 hosted jellyfin[251044]:    at Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
Jan 08 18:08:10 hosted jellyfin[251044]:    at Jellyfin.Server.Program.StartServer(IServerApplicationPaths appPaths, StartupOptions options, IConfiguration startupConfig)
Jan 08 18:08:10 hosted jellyfin[251044]: [18:08:10] [INF] Running query planner optimizations in the database... This might take a while
Jan 08 18:08:10 hosted jellyfin[251044]: [18:08:10] [INF] Disposing CoreAppHost
Jan 08 18:08:10 hosted jellyfin[251044]: [18:08:10] [INF] Disposing MusicBrainzArtistProvider
Jan 08 18:08:10 hosted jellyfin[251044]: [18:08:10] [INF] Disposing MusicBrainzAlbumProvider
Jan 08 18:08:10 hosted jellyfin[251044]: [18:08:10] [INF] Disposing PluginManager
Jan 08 18:08:10 hosted systemd[1]: jellyfin.service: Deactivated successfully.
Jan 08 18:08:10 hosted systemd[1]: jellyfin.service: Consumed 19h 59min 33.188s CPU time, 13.6G memory peak, 2.8G memory swap peak.

Solution for anyone that experiences this (don't panic it's dead simple):

First of all actually make sure that all jellyfin processes are dead. My solution is for Ubuntu 24.04, but it should be pretty easy to find the equivalent steps for your OS.

Kill jellyfin service:

sudo systemctl stop jellyfin

Go to the plugins folder:

cd /var/lib/jellyfin/plugins/

Remove the OpenSubtitles (or subbuzz) plugin (check for your current version first using ls, or type 'Open then hit tab on your keyboard):

rm -rf 'Open Subtitles_23.0.0.0'

Start up the jellyfin service and enjoy:

sudo systemctl start jellyfin.service