RouteNotFoundException when a module is disabled

When xmlsitemap module is configured and then uninstalled, RouteNotFoundException is thrown.

Symfony\Component\Routing\Exception\RouteNotFoundException: Route "xmlsitemap.admin_search" does not exist. in Drupal\Core\Routing\RouteProvider->getRouteByName() (line 187 of core/lib/Drupal/Core/Routing/RouteProvider.php).

The exception disappears when a module is enabled again.