Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints. >Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. > >Exception Details: System.Data.ConstraintException: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints. > >Source Error: > >Line 44: public ReceiptEntity GetReceiptByPKForPrint(Guid receiptPK) >Line 45: { >Line 46: return this.GetEntity("ReceiptsSelectByPKForPrint", >Line 47: this.CreateParameter("@ReceiptPK", receiptPK)); >Line 48:>