backend_startup_one (type=bdb, suffix="dc=npl,dc=tmsr"): bi_db_open failed! (11) bdb_db_close: database "dc=npl,dc=tmsr": alock_close failed
Looks like your BDB database may have been corrupted. It's also possible it is just a problem with the alock file. You can try removing the alock file and running the appropriate BDB db_recover command for the version of BDB your OpenLDAP is linked to.
--Quanah -- Quanah Gibson-Mount Server Architect Zimbra, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration