Fatal error: Uncaught Error: Cannot instantiate abstract class Bitrix\Main\Application in /home/bitrix/www/bitrix/modules/main/lib/application.php:99 Stack trace: #0 /home/bitrix/www/bitrix/modules/main/lib/modulemanager.php(14): Bitrix\Main\Application::getInstance() #1 /home/bitrix/www/bitrix/modules/main/lib/loader.php(100): Bitrix\Main\ModuleManager::getInstalledModules() #2 /home/bitrix/www/404.php(5): Bitrix\Main\Loader::includeModule() #3 /home/bitrix/www/bitrix/urlrewrite.php(4): include_once('...') #4 {main} thrown in /home/bitrix/www/bitrix/modules/main/lib/application.php on line 99