Deprecated: Creation of dynamic property Drupal\nr_media\ResourceFetcher::$_serviceId is deprecated in /var/www/html/web/core/lib/Drupal/Component/DependencyInjection/Container.php on line 287

What is the nr_media module?

_serviceId was deprecated in #2531564: Fix leaky and brittle container serialization solution → in 9.5 and marked for removal in core 11. The property was was an internal only thing anyway.

Looks like your third party code was relying on this internal property, or you have an outdated patch to core which is using it.

Take some time to look through all your patches and contrib and adapt it to work without this property, and make you're not making use of the container serialization features in #2531564: Fix leaky and brittle container serialization solution → .