Fehler: Service exited with abnormal code: 1 beheben?

Hallo Leute

Ich bin relativ neu auf mac und hab noch nicht viele Erfahrungen.

Unser Server 5.2 zeigt (der Mac mini /El Capitan läuft) füllt mir die Server Protokolle mit folgendem Einträgen:

Nov 28 08:54:15 ... xscertd-helper[81972]: ldap_search_ext_s returned -1 - Can't contact LDAP server when searching for bdb suffix, exiting

Nov 28 08:54:15 ... com.apple.xpc.launchd[1] (com.apple.xscertd-helper[81972]): Service exited with abnormal code: 1

Nov 28 08:54:15 ... com.apple.xpc.launchd[1] (com.apple.xscertd-helper): Service only ran for 0 seconds. Pushing respawn out by 10 seconds.

Nov 28 08:54:18 ... com.apple.xpc.launchd[1] (org.openldap.slapd[81975]): Service exited with abnormal code: 1

Nov 28 08:54:18 ... com.apple.xpc.launchd[1] (org.openldap.slapd): Service only ran for 0 seconds. Pushing respawn out by 10 seconds.

Nov 28 08:54:25 ... xscertd-helper[81979]: ldap_search_ext_s returned -1 - Can't contact LDAP server when searching for bdb suffix, exiting

Nov 28 08:54:25 ... com.apple.xpc.launchd[1] (com.apple.xscertd-helper[81979]): Service exited with abnormal code: 1

Nov 28 08:54:25 ... com.apple.xpc.launchd[1] (com.apple.xscertd-helper): Service only ran for 0 seconds. Pushing respawn out by 10 seconds.

com.apple.xpc.launchd[1] (com.apple.xscertd-helper[81618]): Service exited with abnormal code: 1

Wie gehe ich am besten vor um diese Fehler zu beheben?