Error Submitting data.

Hello experts,

I can't seem to figure out what I am doing wrong.

I am using json object and an ajax call to submit data to the database.

When I try to submit the data, I got an error that there is an error submitting to the database.

Any ideas what I could be doing wrong?

Thanks in advance

<script type="text/javascript">$(document).ready(function () {$(document).on("click", "#btnAdd", function () { //
                var rowCount = $('.data-contact-person').length + 1;
                var contactdiv = '<tr class="data-contact-person">' +
                    '<td><input type="text" name="sourcename' + rowCount + '" class="form-control sourcename01" /></td>' +
                    '<td><input type="text" name="sourceaddress' + rowCount + '" class="form-control sourceaddress01" /></td>' +
                    '<td><input type="text" name="sourceincome' + rowCount + '" class="form-control sourceincome01" /></td>' +
                    '<td><button type="button" id="btnAdd" class="btn btn-xs btn-primary classAdd">Add More</button>' +
                    '<button type="button" id="btnDelete1" class="deleteContact btn btn btn-danger btn-xs">Remove</button></td>' +
                    '</tr>';$('#maintable').append(contactdiv); // Adding these controls to Main table class
            });$(document).on("click", "#btnAdd2", function () { //
                var rowCount = $('.data-contact-person2').length + 1;
                var contactdiv = '<tr class="data-contact-person2">' +
                    '<td><input type="text" name="spousename' + rowCount + '" class="form-control spousename01" /></td>' +
                    '<td><input type="text" name="spouseaddress' + rowCount + '" class="form-control spouseaddress01" /></td>' +
                    '<td><input type="text" name="spouseincome' + rowCount + '" class="form-control spouseincome01" /></td>' +
                    '<td><button type="button" id="btnAdd2" class="btn btn-xs btn-primary classAdd">Add More</button>' +
                    '<button type="button" id="btnDelete2" class="deleteContact btn btn btn-danger btn-xs">Add More</button></td>' +
                    '</tr>';$('#maintable2').append(contactdiv); // Adding these controls to Main table class
            });$(document).on("click", ".deleteContact", function () {$(this).closest("tr").remove(); // closest used to remove the respective 'tr' in which I have my controls
        });

        function getAllEmpData() {
            var data = [];
            $('tr.data-contact-person').each(function () {
                var sname = $(this).find('.sourcename01').val();
                var saddress = $(this).find('.sourceaddress01').val();
                var sincome = $(this).find('.sourceincome01').val();
                var spname = $(this).find('.spousename01').val();
                var spaddress = $(this).find('.spouseaddress01').val();
                var spincome = $(this).find('.spouseincome01').val();
                var alldata = {
                    'mySource': sname,
                    'mySAddress': saddress,
                    'mySIncome': sincome,
                    'mySpouse': spname,
                    'mySPAddress': spaddress,
                    'mySPIncome': spincome
                }
                data.push(alldata);
            });
            console.log(data);
            return data;
        }$("#btnSubmit").click(function () {
            var data = JSON.stringify(getAllEmpData());
            //console.log(data);$.ajax({
                url: 'closures.aspx/SaveData',
                type: 'POST',
                dataType: 'json',
                contentType: 'application/json; charset=utf-8',
                data: JSON.stringify({ 'empdata': data }),
                success: function () {
                    alert("Data Added Successfully");
                },
                error: function () {
                    alert("Error while inserting data");
                }
            });
        });
    });</script><WebMethod()> _
    Public Shared Function SaveData(empdata As String) As String
        Dim serializedData = JsonConvert.DeserializeObject(Of List(Of Employee))(empdata)
        Using con = New SqlConnection(Constr)
            If con.State = ConnectionState.Closed Then
                con.Open()
            End If
            For Each data As Employee In serializedData
                Using cmd = New SqlCommand("INSERT INTO SourceDetails(sourcename, sourceaddress, sourceincome, createDate) VALUES(@sname, @saddress,@sincome,@CreatedDate)")

                    cmd.CommandType = CommandType.Text
                    cmd.Parameters.AddWithValue("@sname", data.mySpouse)
                    cmd.Parameters.AddWithValue("@saddress", data.mySAddress)
                    cmd.Parameters.AddWithValue("@sincome", data.mySIncome)
                    cmd.Parameters.AddWithValue("@CreatedDate", DateTime.Now)
                    cmd.Connection = con
                    cmd.ExecuteNonQuery()
                End Using
            Next
            con.Close()
        End Using
        Return Nothing
    End Function