Augment not specified parameter

-error of argument not specified parameter appears in stored procedure Add_EC_Customers , where Add_EC_Customers stored procedure has 10 parameters but i need to insert only 5 parameters not 10 but i think error told me you must insert all parameters

Partial Class Register Inherits System.Web.UI.Page

Private Sub BTNReg_Click(sender As Object, e As EventArgs) Handles BTNReg.Click

    Using DSCustomers As New Dal.Customers.CustomersDataContext

Dim Customers = DSCustomers.Add_EC_Customers(TxtfirstName.Text, TxtLastName.Text, TxtUserName.Text, TxtEmail.Text, RdoGender.SelectedValue, DrpDwnCountry.SelectedValue, TxtPassword.Text)

    End Using