CiviCRM Community Forums (archive)

I upgraded my CiviCRM install from 4.3.8 to 4.4 last week. Everything seemed to be working, but I've noticed today that we are having some fatal errors written to the log and causing some troubles. I think they may be two separate errors.

First, Apache logs show the following error, and it is occurring every 15 minutes, which is when I run sites/all/modules/civicrm/bin/cron.php:

PHP Fatal error:  Class 'DB' not found in /sites/all/modules/civicrm/CRM/Utils/System.php on line 614


Then, in addition, I am seeing the Drupal logs are showing things like:

Location http://mysite.org/civicrm/event/info?reset=1&id=22
Referrer
Message $Fatal Error Details = Array ( [message] => The page you requested is currently unavailable. [code] => )
and

Location http://mysite.org/civicrm/event/info?reset=1&id=22
Referrer
Message $backTrace = #0 /sites/all/modules/civicrm/CRM/Core/Error.php(322): CRM_Core_Error::backtrace("backTrace", TRUE) #1 /sites/all/modules/civicrm/CRM/Event/Page/EventInfo.php(83): CRM_Core_Error::fatal("The page you requested is currently unavailable.") #2 /sites/all/modules/civicrm/CRM/Core/Invoke.php(323): CRM_Event_Page_EventInfo->run((Array:3), NULL) #3 /sites/all/modules/civicrm/CRM/Core/Invoke.php(72): CRM_Core_Invoke::runItem((Array:15)) #4 /sites/all/modules/civicrm/CRM/Core/Invoke.php(52): CRM_Core_Invoke::_invoke((Array:3)) #5 /sites/all/modules/civicrm/drupal/civicrm.module(456): CRM_Core_Invoke::invoke((Array:3)) #6 [internal function](): civicrm_invoke("event", "info") #7 /includes/menu.inc(517): call_user_func_array("civicrm_invoke", (Array:2)) #8 /index.php(21): menu_execute_active_handler() #9 {main}
This looks to be an issue with events.

Ideas on what is going on?