No. Its a REPLACE INTO command. Please read mysql manual, replace into will add the record if it does not exist, if a record exists with the same prinary ID, then it will update that record instead. the command is not faulty, there is still a issue with the mysql db on your server, mabe it was not restarted proerly and you should restart the whole slave after you ensured that the sql_mode is really correct now. You can also skip this command by incrementing the updated column by 1 in the server table of the master database, but the problem will reoccur when you do the next change in ispconfig until the underlying problem in the mysqls etup is fixed.