Since I could not resolve the problem, I did a bypass:
First I made a clone of my web site and there uninstalled Simple XML sitemap module. Than, I took a database from the cloned site and replaced a database on an original site with it.
Problem solved.
Hi samir_shukla,
before uninstalling, I have removed anything from the configuration in /admin/config/search/simplesitemap
This is a message in "Status report":
x Entity/field definitions
Mismatched entity and/or field definitions
The following changes were detected in the entity type and field definitions.
Simple XML sitemap type
The Simple XML sitemap type entity type needs to be installed.
This is very annoying fact that I am not able to deinstall a module. I just want to have a clean situation before upgrading from Drupal 9.5.11 to Drupal 10.*
Drupal 9.5.11
PHP version 8.2.9
e_wolf → created an issue.