Hi!
Looks like MySQL issue. You should try to run REPAIR TABLE on all reported tables: http://dev.mysql.com/doc/refman/5.0/en/repair-table.html. Probably there also should be a tool to repair all of them.
If you decide to re-create database, you can try to do export and then import into empty database with nxdbmgr export and import commands. I also suggest to try out PostgreSQL as backend database.
Best regards,
Victor
Looks like MySQL issue. You should try to run REPAIR TABLE on all reported tables: http://dev.mysql.com/doc/refman/5.0/en/repair-table.html. Probably there also should be a tool to repair all of them.
If you decide to re-create database, you can try to do export and then import into empty database with nxdbmgr export and import commands. I also suggest to try out PostgreSQL as backend database.
Best regards,
Victor