Why after i subscribed your media server the Arabic subtitle corrupted since four months ago?




Because you are clearly using the wrong locale - either your subtitle is not utf8 or your TV is not using utf8.
To be honest it would help if you gave us a little more information on what TV you have...
Check the file encoding of your subtitle file (should either be utf8 or a specific arabic locale - I don't know what the exact name is there) - then make sure your TV has the right settings on how to display the subtitles - that should be in the manual of your TV.


see also https://forums.plex.tv/discussion/229218/%D8%AD%D9%84-%D9%85%D8%B4%D9%83%D9%84%D8%A9-%D8%AA%D8%B1%D8%AC%D9%85%D8%A9-%D8%A7%D9%84%D9%84%D8%BA%D8%A9-%D8%A7%D9%84%D8%B9%D8%B1%D8%A8%D9%8A%D8%A9-%D9%81%D9%8A-%D8%A8%D9%84%D9%8A%D9%83%D8%B3

as well as https://forums.plex.tv/discussion/9063/arabic-subtitles

and https://forums.plex.tv/discussion/91444/arabic-subtitle-have-been-solved-finally