Anyone can suggest a correct procedure to get it stable without
restoring the 23's backup file ?
Your logs indicate ldbm; that database backend isn't ACID so there's no
way to guarantee recovery in one piece. Your best bet is to take your most
recently available good data in LDIF form (e.g. slapcat), and slapadd it
into a new bdb or hdb database. {b,h}db can recover from these sort of
issues.