XF 1.4.2 Error message: Code: Undefined index: brausl_user_selectable XenForo_Application::handlePhpError() in C:\xampp\htdocs\...\library\XenForo\ControllerAdmin\Abstract.php at line 129 XenForo_ControllerAdmin_Abstract->_getToggleResponse() in C:\xampp\htdocs\...\library\Brivium\AllowUserSelectLanguage\ControllerAdmin\Language.php at line 15 Brivium_AllowUserSelectLanguage_ControllerAdmin_Language->actionToggle() in C:\xampp\htdocs\...\library\XenForo\FrontController.php at line 347 XenForo_FrontController->dispatch() in C:\xampp\htdocs\...\library\XenForo\FrontController.php at line 134 XenForo_FrontController->run() in C:\xampp\htdocs\...\admin.php at line 13