Upgrade UCS from 5.1 to 5.2

Hi everyone, i have problem when i upgrade UCS from 5.1 to 5.2.
the error like this after upgrade, and the console web after upgrade Forbidden.
Starting update process, this may take a while.
Check /var/log/univention/updater.log for more information.
Running postup.sh script:Object removed: uid=ucs-sso,cn=users,dc=ucs-testing-upgrade,dc=com
done.
Traceback (most recent call last):
File “/usr/share/univention-updater/univention-updater”, line 33, in
File “/usr/lib/python3/dist-packages/univention/updater/scripts/updater.py”, line 451, in main
FileNotFoundError: [Errno 2] No such file or directory
ERROR: update failed. Please check /var/log/univention/updater.log

The issue seems to be with the migration process not handling all scenarios properly. It likely needs to be more robust to handle various edge cases and potential failures that may occur during migration. Several users appear to be experiencing this same problem, suggesting it’s a systematic issue rather than an isolated incident.