Can't log into my websites admin panel due to line 0 errors

Can't log into my websites admin panel due to line 0 errors

I can't log into the admin panel at here due to line 0 errors, the
developers of this software said I should check the php files if they have
any spaces in them and they don't, adding error_reporting = E_ALL
E_DEPRECATED didn't hide the errors or anything like that.
Please help me out here.