My swedish turned into arabic

I don’t know of any way my plugin would be able to achieve this result on its own. It’s just an editor. If you type in Arabic into a Swedish file, you’ll get Arabic when you set the language to Swedish. I cannot guess at how that came about in your case, but this plugin won’t simply get the languages confused by accident.

The same just happened to me. I just installed the plugin, and transleted to Danish. But everything turned Arabic, and it will not translate to any other languages.