403 Forbidden Error
Installation and Configuration
Make sure you upload the newest .htaccess file to your root directory, you can find a copy of it in /modules/jrCore/root/.htaccess, it should go at /
so
/modules/...
/.htaccess
There is also a /repair.php.html file in that same location. Rename it to /repair.php and open it in a web browser yoursite.com/repair.php and you can run the integrity check from there.