Error 403: your request was denied
Possible causes for this error are:
No index page (e.g. index.php or index.html) was found
Your request was denied by our web application firewall.
we have installed a new template package including joomla. but we can no longer access the website backend, unless we rename the .htaccess again. then we come back to the backend but cannot do any updates etc. because there is an admin error ...
