Need more information such as what you are trying to access and who is trying to access it.
Is this a phpBB error page or a server error page?
That said if it's phpBB error page you likely have forum permissions that is either set or not set. Even if you are administrator and set a forums permissions to no access for the admin group you'll get the permissions denied error.
“Results! Why, man, I have gotten a lot of results! I have found several thousand things that won’t work.”
I'm admin in this forum and I'm owner the ftp account. The link to the forum is http://www.forum.distanzteam.de
I've a user account too.
But the problem seems to be not at the forum level.
There is absolutly no interaction possible!
The same thing happens to me. When I want to go to Administration Control Panel I also suddenly see the message "Forbidden. You don't have permission to access this resource."
@esprit22: Please start your own topic by please filling out the Support Request Template and posting it back here in your new topic to enable us to assist you better, thanks.