LDAP-Fehler No such attribute: modify/delete: univentionNagiosEmail: no such attribute

Dear Community, dear DEV-Team,

when I try to remove an Computer from Nagios (disable nagios within options) I’ve got the following error:

Das LDAP-Objekt konnte nicht gespeichert werden: LDAP-Fehler No such attribute: modify/delete: univentionNagiosEmail: no such attribute

UCS 4.4-8 errata1146