Informix Error -118

-118 ISAM error: cannot read log record.

The ISAM processor is trying to roll back a transaction or recover a file but has encountered an error while reading the transaction log. Look for operating-system error messages that might give more information. Use the dblog or selog utility to get more information about the problem. If the file (table) cannot be recovered, you will have to re-create it or restore it from backup.