We have investigated the error and that's why it appears:
In the lang file in my case eng.php i had edit the $l_accessDenied like so:
$l_accessDenied='Operation can not be completed. Either you are trying to access a section of the forums, which you do not have access to, either trying to execute an action, which is not allowed for you or you are a new user. If you are a new user it may take up to 24 hours to use your account. if you are not a new user or it has been over 24 Hours, Please contacted Skills (ingame) with what you are trying to do or that your account hasn\'t been accepted. Thank you.';
Now the part in red is where the java script (if that is what your using) doesn't like it on changing that to have not the PM system is working.