When trying to logon via the forums I get "A server error occurred. Please try again later."
When trying to logon to the admin panel I just get redirected back to the admin logon again.
If I try to run the upgrade script I get:
Invalid authentication module '' (XenForo_Authentication_Core12) specified
- XenForo_Authentication_Abstract::create() in XenForo/Model/User.php at line 1251
- XenForo_Model_User->getUserAuthenticationObjectByUserId() in XenForo/Model/User.php at line 1279
- XenForo_Model_User->validateAuthentication() in XenForo/Install/Controller/Upgrade.php at line 296
- XenForo_Install_Controller_Upgrade->actionLogin() in XenForo/FrontController.php at line 347
- XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
- XenForo_FrontController->run() in /var/www/vhosts/domainname.com/httpdocs/forums/install/index.php at line 18\
Any help on how to resolve this issue please as the forum is basically dead at the moment.