Magento Syslog 2015-07-14T14: 48: 34 + 00: 00 ERR (3): Warning: Mage_Core_Model_App :: dispatchEvent (): Node no longer exists

We get the following error over and over and fill the system.log file completely: 2015-07-14T14: 48: 34 + 00: 00 ERR (3): Warning: Mage_Core_Model_App :: dispatchEvent (): Node no longer exists in / chroot / home / website / html / app / code / core / Mage / Core / Model / App.php on line 1281

This is line 1281 through 1287. How do I fix this? I'm sure what that means.

                foreach ($eventConfig->observers->children() as $obsName=>$obsConfig) {
                $observers[$obsName] = array(
                    'type'  => (string)$obsConfig->type,
                    'model' => $obsConfig->class ? (string)$obsConfig->class : $obsConfig->getClassName(),
                    'method'=> (string)$obsConfig->method,
                    'args'  => (array)$obsConfig->args,
                );

      

        
        
        
      

    

we cleared the cache, re-indexed, started and disabled the compiler.