I see there are a few threads for this error, unexpected symbol near ‘<\239>’ for other mods etc…
This one was resolved by using notepad++.
You said you did that though. Are you editing directly on the server? Or on your local computer and uploading first? Something is getting changed when you make an edit, which is causing the fivem code parser to not read the file properly. In WinSCP make sure the transfer mode for uploading the lua files to the server is in ascii mode. If it is, and it is not working, try binary mode just in case.
I would get a hold of zap hosting support to see what they say as well.