[Koha] How to repair a table - Koha biblioitems

Whenever I run a backup or try a dump, I get a message that contact with mysql has dropped at a particular record. I've tried deleting the record, but the issue just switches to another record. Apparently the table is corrupted. When I try to repair the table with mysqlcheck I get the message that the storage engine does not support repair. Does anyone know of a way to repair this table? I'm rather desperate as I can't get a full backup with this issue. Thanks for any help. Phillip