Plesk Panel Home Page not showing after Upgrade from 11.5 to 12

[StéphanS]

# tail /usr/local/psa/admin/logs/panel.log -fn0
tail: inotify cannot be used, reverting to polling
[17-Jun-2014 23:48:05 Europe/Berlin] PHP Warning: require_once(modules/firewall/FwConfigurator.php): failed to open stream: No such file or directory; File: /usr/local/psa/admin/application/admin/controllers/HomeController.php, Line: 104

[17-Jun-2014 23:48:05 Europe/Berlin] Exception: PHP Warning: require_once(modules/firewall/FwConfigurator.php): failed to open stream: No such file or directory; File: /usr/local/psa/admin/application/admin/controllers/HomeController.php, Line: 104

file: /usr/local/psa/admin/plib/Smb/Exception/Syntax.php
line: 56
code: 0
trace: #0 /usr/local/psa/admin/application/admin/controllers/HomeController.php(104): Smb_Exception_Syntax::handleError(2, 'require_once(mo...', '/usr/local/psa/...', 104, Array)
#1 /usr/local/psa/admin/application/admin/controllers/HomeController.php(104): Admin_HomeController::_isFirewallRulesUpdated()
#2 /usr/local/psa/admin/application/admin/controllers/HomeController.php(52): Admin_HomeController->_isFirewallRulesUpdated()
#3 /usr/local/psa/admin/externals/Zend/Controller/Action.php(516): Admin_HomeController->adminAction()
#4 /usr/local/psa/admin/externals/Zend/Controller/Dispatcher/Standard.php(295): Zend_Controller_Action->dispatch('adminAction')
#5 /usr/local/psa/admin/externals/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#6 /usr/local/psa/admin/plib/Application/Web.php(38): Zend_Controller_Front->dispatch(NULL)
#7 /usr/local/psa/admin/htdocs/application.php(15): Plesk\Application_Web->run()
#8 {main}

[17-Jun-2014 23:48:05 Europe/Berlin] PHP Fatal error:  require_once(): Failed opening required 'modules/firewall/FwConfigurator.php' (include_path='/usr/local/psa/admin/plib:/usr/local/psa/admin/externals') in /usr/local/psa/admin/application/admin/controllers/HomeController.php on line 104

Fix was to open the autoinstaller and install Plesk Firewall module.
I then just removed the Firewall module.


Hopefully this helps someone out.