How to remove an error using Stored Procedure?

SqlConnection conn;
            SqlCommand comm;
            string connectionString = ConfigurationManager.ConnectionStrings["Dorknozzle"].ConnectionString;
            conn = new SqlConnection(connectionString);
            comm = new SqlCommand("InsertHelpDesk1", conn);
            comm.CommandType = System.Data.CommandType.StoredProcedure;


comm.Parameters.Add("@EmployeeID", System.Data.SqlDbType.Int,50);
           comm.Parameters["@EmployeeID"].Value = 5;
           comm.Parameters.Add("@StationNumber", System.Data.SqlDbType.Int);
           comm.Parameters["@StationNumber"].Value = stationTextBox.Text;
           comm.Parameters.Add("@CategoryID", System.Data.SqlDbType.Int);
           comm.Parameters["@CategoryID"].Value = categorylist.SelectedItem.Value;
           comm.Parameters.Add("@SubjectID", System.Data.SqlDbType.Int);
           comm.Parameters["@SubjectID"].Value = subjectlist.SelectedItem.Value;
           comm.Parameters.Add("@Description", System.Data.SqlDbType.NVarChar, 50);
           comm.Parameters["@Description"].Value = descriptionTextBox.Text;
           comm.Parameters.Add("@StatusID", System.Data.SqlDbType.Int);
           comm.Parameters["@StatusID"].Value = 1;
      
               conn.Open();
               comm.ExecuteNonQuery();
               Response.Redirect("HelpDesk.aspx");
          
  conn.Close();

CREATE PROCEDURE InsertHelpDesk1
(
@EmployeeID int,
@StationNumber int,
@CategoryID int,
@SubjectID int,
@Description nvarchar(50),
@StatusID int
)
AS
INSERT INTO Dorknozzle1.dbo.HelpDesk1 (EmployeeID, StationNumber, CategoryID,
SubjectID, Description, StatusID)
VALUES (@EmployeeID, @StationNumber, @CategoryID, @SubjectID,
@Description, @StatusID)

comm.ExecuteNonQuery();