Can't delete or change record. Since related records exist in table 'Item', referential integrity rules would be violated.
You tried to perform an operation that would have violated referential integrity For example, this error occurs if you try to delete or change a record in the "one" table in a one-to-many relationship when there are related records in the "many" table. rules for related tables.
If you want to delete or change the record, first delete the related records from the "many" table.