5792 Invalid operation on table '%VSTR'.
This error message is reported when the user attempts to perform an update operation on a table which has been invalidated. This error can also be reported if a single table retrieve is being executed without specifying the READ OVERRIDE locking modifier.
Validate the table on which update operation has to be performed by executing a DELETE ALL operation on it or by dropping and creating it again. In case a single table retrieve operation is being performed, then specify the READ OVERRIDE locking modifier. The table can also be used after restoring it from backup.