Notice: Undefined property: stdClass::$single in /var/www/bugel.kz/data/www/bugel.kz/application/classes/Controller/Category.php on line 19

Fatal error: Uncaught Error: Call to a member function add() on null in /var/www/bugel.kz/data/www/bugel.kz/application/classes/Controller/Category.php:19 Stack trace: #0 /var/www/bugel.kz/data/www/bugel.kz/system/classes/Kohana/Controller.php(84): Controller_Category->action_show() #1 [internal function]: Kohana_Controller->execute() #2 /var/www/bugel.kz/data/www/bugel.kz/system/classes/Kohana/Request/Client/Internal.php(97): ReflectionMethod->invoke(Object(Controller_Category)) #3 /var/www/bugel.kz/data/www/bugel.kz/system/classes/Kohana/Request/Client.php(114): Kohana_Request_Client_Internal->execute_request(Object(Request), Object(Response)) #4 /var/www/bugel.kz/data/www/bugel.kz/system/classes/Kohana/Request.php(993): Kohana_Request_Client->execute(Object(Request)) #5 /var/www/bugel.kz/data/www/bugel.kz/index.php(130): Kohana_Request->execute() #6 {main} thrown in /var/www/bugel.kz/data/www/bugel.kz/application/classes/Controller/Category.php on line 19