Forbidden 404 Error

[p4fx10ho]

Forbidden
You don't have permission to access /admin/index.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Please help?

Thank You.

 

[p4fx10ho]

Anybody can help please?

 

[caftpx10]

What have you done to get this?

 

[p4fx10ho]

Inserted few codes html MyBB global.css...

Can't edit nothing.

 

[p4fx10ho]

Anybody can fix this please urgent ?

 

[caftpx10]

Could be the HTML rule that prevents anything that uses tags.