in my website control panel and 403 errors

[timshilleto64]

having the 403 errors all in admin cp i deleted it all and tryed to start again but now with cpanel when im trying to uses the easy-to-use software installer to install mybb i get Could not unzip the Language files

 

[timshilleto64]

now im getting a

Not Acceptable
An appropriate representation of the requested resource /admin/index.php could not be found on this server.

Additionally, a 406 Not Acceptable error was encountered while trying to use an ErrorDocument to handle the request.

when i try to edit templates