TypeError: property_exists(): Argument #1 ($object_or_class) must be of type object|string, null given
/var/www/instances-local/instance-1516/application/modules/editor/Controllers/UserController.php (311)   
 #0 /var/www/instances-local/instance-1516/application/modules/editor/Controllers/UserController.php(311): property_exists()
    #1 /var/www/instances-local/instance-1516/vendor/shardj/zf1-future/library/Zend/Controller/Action.php(522): Editor_UserController->authenticatedAction()
    #2 /var/www/instances-local/instance-1516/library/ZfExtended/Controllers/AAARestController.php(351): Zend_Controller_Action->dispatch()
    #3 /var/www/instances-local/instance-1516/vendor/shardj/zf1-future/library/Zend/Controller/Dispatcher/Standard.php(308): ZfExtended_RestController->dispatch()
    #4 /var/www/instances-local/instance-1516/vendor/shardj/zf1-future/library/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch()
    #5 /var/www/instances-local/instance-1516/vendor/shardj/zf1-future/library/Zend/Application/Bootstrap/Bootstrap.php(106): Zend_Controller_Front->dispatch()
    #6 /var/www/instances-local/instance-1516/vendor/shardj/zf1-future/library/Zend/Application.php(400): Zend_Application_Bootstrap_Bootstrap->run()
    #7 /var/www/instances-local/instance-1516/library/ZfExtended/Application.php(75): Zend_Application->run()
    #8 /var/www/instances-local/instance-1516/library/ZfExtended/BaseIndex.php(171): ZfExtended_Application->run()
    #9 /var/www/instances-local/instance-1516/public/index.php(35): ZfExtended_BaseIndex->startApplication()
    #10 {main}