Fatal error: Uncaught Error: Access to undeclared static property: Controller_Layout::$lang in /application/controller/Layout.php:68 Stack trace: #0 /application/controller/index.php(25): Controller_Layout->getLanguage() #1 /application/controller/index.php(18): Controller_Index->action_strona(1, '', '') #2 [internal function]: Controller_Index->action_index('0', NULL, NULL, NULL) #3 /index.php(502): ReflectionMethod->invokeArgs(Object(Controller_Index), Array) #4 /index.php(549): init() #5 {main} thrown in /application/controller/Layout.php on line 68