HelpTypes

Warning (2): Trying to access array offset on null [APP/Controller/HelpTypesController.php, line 338]Code Context<?php             $groupSes = $this->Session->read('Group');
<?php         
<?php             $community_id = $groupSes['community_id'];
HelpTypesController::users() - APP/Controller/HelpTypesController.php, line 338
ReflectionMethod::invokeArgs() - [internal], line ??
Controller::invokeAction() - CORE/Cake/Controller/Controller.php, line 499
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 193
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167
[main] - APP/webroot/index.php, line 105