Nextcloud vanish after update to 5.0


I recently updated my univention server 4.4-8 to 5.0.

The first time update did not works and I fix it with information provided on this topic. After the fix the update to 5.0 was done succesfully but nexcloud service vanish completly.

Now nextcloud URL gives “not found” when I try to acces it. In Univention Portal there is no installed nextcloud app. Where is it ? And can I retreive data stored through nextcloud ?

Thanks for your help.