Embedded subtitles

[TheDreadPirate]

[2023-09-11 10:57:13.849 +02:00] [WRN] [34] Jellyfin.Server.Middleware.ResponseTimeMiddleware: Slow HTTP Response from "http://192.168.1.29:8096/Packages/Open Subtitles?AssemblyGuid=4b9ed42f518548b598036ff2989014c4" to "192.168.1.42" in 0:00:00.552652 with Status Code 200
[2023-09-11 10:57:16.532 +02:00] [ERR] [11] Emby.Server.Implementations.Plugins.PluginManager: Failed to download image to path "/volume1/@appdata/jellyfin/data/plugins/Subtitle Extract_2.0.0.0/jellyfin-plugin-subtitleextract.png" on disk.
System.Net.Http.HttpRequestException: Response status code does not indicate success: 404 (Not Found).

Does jellyfin not have full permissions to its directory? Can you verify that the user that runs the container has full permissions to every folder in its directory?