The "rdf_mapping" entity type does not exist after D10 upgrade

Problem/Motivation

I am using the module warmer.
It reports in logs the error:

Drupal\Component\Plugin\Exception\PluginNotFoundException: The "rdf_mapping" entity type does not exist. in Drupal\Core\Entity\EntityTypeManager->getDefinition() (line 139 of /var/www/web/core/lib/Drupal/Core/Entity/EntityTypeManager.php).

I am using D10.1.7
The error exists since I upgraded to D10. So there must be some leftover from the upgrade from 9.5

I could not remove that mapping...

Steps to reproduce

Proposed resolution

I installed this module hoping it would use that mapping as well. Then a rdf mapping appeared in the config of warmer.
I could deactivate it and then uninstall this module.

Just someone else has this problem too.
Thanks for this module!

Remaining tasks

None. Since D9 is no longer supported and this is just a rare situation. Probably some mistake from warmer's config.

User interface changes

API changes

Data model changes