Fatal error: Uncaught TypeError: Modules\Pregol\Branches\Left::href(): Argument #1 ($node) must be of type DOMElement, null given, called in /var/www/focktrix/framework/components/Controllers/MainController.php on line 802 and defined in /var/www/focktrix/framework/components/Modules/Pregol/Branches/Left.php:21 Stack trace: #0 /var/www/focktrix/framework/components/Controllers/MainController.php(802): Modules\Pregol\Branches\Left::href() #1 [internal function]: Controllers\MainController->actionCrawler() #2 /var/www/focktrix/framework/components/Controllers/Controller.php(243): call_user_func_array() #3 /var/www/focktrix/framework/components/App/Application.php(218): Controllers\Controller->doAction() #4 /var/www/focktrix/framework/components/App/Application.php(210): App\Application->job() #5 /var/www/focktrix/framework/components/Router/RouterSystem.php(92): App\Application->doRouterWork() #6 /var/www/focktrix/framework/components/Router/RouterSystem.php(36): Router\RouterSystem->read_urls() #7 /var/www/focktrix/framework/components/App/Application.php(106): Router\RouterSystem->job() #8 /var/www/focktrix/index.php(22): App\Application->__construct() #9 {main} thrown in /var/www/focktrix/framework/components/Modules/Pregol/Branches/Left.php on line 21