Upgrade 25.0.0 to 25.0.1 - LDAP Error - Maybe the LDAP entry has no set display name attribute?

[flo42]

This error (“pageMode is not a valid attribute”) comes from the collectives app and is going to be addressed in an upcoming release of the app. Disabling the app as mentioned in this answer will remove the error:

Error after successful upgrade from 24.0.7 to 25.0.1, "pageMode is not a valid attribute"

I found the culprit: disabling Collectives (i ran version 2.0.0) solved the problem for me. Disabled via sudo -u www-data php occ app:disable collectives

This answer in the same thread has a link to a temporary workaround so that the app can be activated again without waiting for the release containing the fix:

Error after successful upgrade from 24.0.7 to 25.0.1, "pageMode is not a valid attribute"

Looks like this is an issue with the migration to 1.6 of collectives which may persist if updating to Nextcloud 25 and collectives 2.0.0 afterwards. This comment has a workaround for enabling collectives again: Also 2.1.0 with a fix will be published asap.