problem

[sr1b]

Hi
i have a problem i can't do any change on the Templates every time i try
it show's a page says

Forbidden

You don't have permission to access /vb/admincp/css.php on this server.

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

?????????
my Version: 3.6.3

please help

[Marco van Herwaarden]

This is either because PHP does not have enough memory available, or due to mod_security.

While mod_security can be a very powerful tool, misconfigured or overly strict rule sets can interfere with vBulletins Operation. Below for Apache users you can use an htaccess file and add a specific rule to disable mod_security.

Make or edit your forum .htaccess file and add the following code
Code:
<IfModule mod_security.c>
SecFilterEngine Off
SecFilterScanPOST Off
</IfModule>

Note, place this file in your main forum directory.

See this also thread: http://www.vbulletin.com/forum/showthread.php?t=167121