Symfony\Component\Routing\Exception\RouteNotFoundException: Unable to generate a URL for the named route "app_register" as such route does not exist.

[sentry-io]

Sentry Issue: MYPROFILE-BC

Symfony\Component\Routing\Exception\RouteNotFoundException: Unable to generate a URL for the named route "app_register" as such route does not exist.
  File "/src/EventSubscriber/SitemapSubscriber.php", line 75, in App\EventSubscriber\SitemapSubscriber::registerStaticUrls
    UrlGeneratorInterface::ABSOLUTE_URL
  File "/src/EventSubscriber/SitemapSubscriber.php", line 37, in App\EventSubscriber\SitemapSubscriber::populate
    $this->registerStaticUrls($event->getUrlContainer());
  File "/public/index.php", line 5
    require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
...
(11 additional frame(s) were not displayed)

Uncaught PHP Exception Symfony\Component\Routing\Exception\RouteNotFoundException: "Unable to generate a URL for the named route "app_register" as such route does not exist." at /app/vendor/symfony/routing/Generator/CompiledUrlGenerator.php line 50