Data problems Some of your tables have problems with their auto_increment values which may lead to data loss. *You should not ignore this warning.* The problem is that InnoDB does not keep auto_increment across SQL server restarts (it is only set in memory). So on server startup the auto_increment values are set to max(table.id)+1. To know how to avoid this problem see the related wiki page: DBMS auto increment fix <https://wiki.koha-community.org/wiki/DBMS_auto_increment_fix> Problems found Patrons The following ids exist in both tables *borrowers* and *deletedborrowers*: 28 I am geting this warning.I have full koha backup. kindly help me. to resolve this problem. I already fixed auto-incrementation bug. Sincerely yours rajesh I am using maria db