Notice (8): Undefined index: HTTP_ACCEPT_LANGUAGE [APP/Controller/AppController.php, line 100]
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        );

        $language = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
AppController::beforeFilter() - APP/Controller/AppController.php, line 100
call_user_func - [internal], line ??
CakeEventManager::dispatch() - CORE/Cake/Event/CakeEventManager.php, line 243
Controller::startupProcess() - CORE/Cake/Controller/Controller.php, line 677
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 189
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167
[main] - APP/webroot/index.php, line 118