Notice: Undefined index: HTTPS in /var/www/html/vendor/composer/autoload_real.php(7) : eval()'d code(1) : eval()'d code on line 1

Fatal error: Uncaught Error: Call to a member function mergeRssRoute() on null in /var/www/html/override/classes/Dispatcher.php:87
Stack trace:
#0 /var/www/html/classes/Dispatcher.php(207): Dispatcher->__construct(Object(Symfony\Component\HttpFoundation\Request))
#1 /var/www/html/index.php(28): DispatcherCore::getInstance()
#2 {main}
  thrown in /var/www/html/override/classes/Dispatcher.php on line 87