ดูให้หน่อยครับ ว่าทำไมถึง error ตอน Update อะครับ..

str2 = "UPDATE detail_payment SET " & _
            "Detail_ID = '" & detail & "' ," & _
            "Loan_ID = '" & lbnoLoan.Text & "' ," & _
            "Pay = '" & txtpay.Text & "' ," & _
           "Overdue = '" & total & "' ," & _
           " WHERE Detail_ID = '" & detail & "'"
            objCmd = New MySqlCommand
            With objCmd
                .Connection = myConnection
                .CommandText = str2
                .CommandType = CommandType.Text
            End With
            
            objCmd.ExecuteNonQuery()
            myConnection.Close()

            MessageBox.Show("บันทึกข้อมูลการกู้เรียบร้อยแล้ว")