Randomly ldap will crash on our SuSe server
when I try to restart ldap '/opt/novell/eDirectory/sbin/nldap -u' '-l'
I get the message "failed to start / stop / restart ldap"

in the message log this is what it is showing:

Mar 15 01:00:00 server-name kernel: [6522184.893958] NSS: BGComp next start timer will go off in 86400 seconds at 00:00:00
Mar 15 01:00:00 server-name kernel: [6522184.893969] NSS: BGComp scanning started by background timer (nss /CompressionDailyCheckStartingHour).
Mar 15 01:00:00 server-name kernel: [6522184.893974] NSS: BGComp scanning completed.
Mar 15 01:00:00 server-name kernel: [6522184.893975] NSS: BGComp queued requests now complete.
Mar 15 01:00:01 server-name /usr/sbin/cron[28619]: (root) CMD (/etc/init.d/watchdog -e >/dev/null 2>&1)
Mar 15 01:00:01 server-name /usr/sbin/cron[28621]: (root) CMD (/opt/novell/eDirectory/bin/ndsrepair -U)
Mar 15 01:00:05 server-name sshd[28682]: Connection closed by 127.0.0.1 [preauth]
Mar 15 01:00:06 server-name nsmeventd[3098]: EM: Unhandled error in poll loop: basic_string::_S_construct null not valid
Mar 15 01:00:06 server-name nsmeventd[3098]: EM: Unhandled error: Unhandled exception requiring restart of event monitor function.
Mar 15 01:00:06 server-name nsmeventd[3098]: EM: ldapssl_start_tls: (81) Can't contact LDAP server
Mar 15 01:00:06 server-name nsmeventd[3098]: EM: ldapssl_start_tls: (81) Can't contact LDAP server
Mar 15 01:00:06 server-name /usr/sbin/namcd[4513]: GetGIDsGroupListNumberOfGroupsOfWS: Error [81] in LDAP search while trying to find group FDNs with scope=base for cn=UNIX Workstation - server-name,o=sd
Mar 15 01:00:06 server-name /usr/sbin/namcd[4513]: GetGIDsGroupListNumberOfGroupsOfWS: Error [81] in LDAP search while trying to find group FDNs with scope=base for cn=UNIX Workstation - server-name,o=sd
Mar 15 01:00:06 server-name /usr/sbin/namcd[4513]: GetGIDsGroupListNumberOfGroupsOfWS: Error [81] in LDAP search while trying to find group FDNs with scope=base for cn=UNIX Workstation - server-name,o=sd
Mar 15 01:00:09 server-name nsmeventd[3098]: EM: ldapssl_start_tls: (81) Can't contact LDAP server
Mar 15 01:00:09 server-name volmnd[5092]: Pinging EFLs
Mar 15 01:00:11 server-name nsmeventd[3098]: EM: ldapssl_start_tls: (81) Can't contact LDAP server
Mar 15 01:00:14 server-name nsmeventd[3098]: EM: ldapssl_start_tls: (81) Can't contact LDAP server

Does anyone know where I can find some more in-depth information in log files? This happens very very sporadically.