Cmd.executenonquery() error message

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C#

I have the following code on an update button in WinForms VS 2017.

private void btnEdit_Click(object sender, EventArgs e)
        {
            if (txtOrder.Text != "")
            {
                cmd = new SqlCommand("UPDATE AER_INBOUND_PLASTICS SET [STATUS]=@status,[DATE]=@date,[SOPO_NO]=@order,[SHIPPER]=@shipper,[VENDOR]=@vendor,[WAREHOUSE]=@warehouse,[COMMENTS]=@comments,[PURCH_PART_CODE]=@part1,[PURCH_PART_CODE_2]=@part2,GETDATE(),[MODIFIED_BY]=@user WHERE ID=@id", con);
                con.Open();
                cmd.Parameters.AddWithValue("@id", ID);
                cmd.Parameters.AddWithValue("@status", comboBoxStatus.SelectedItem.ToString());
                cmd.Parameters.AddWithValue("@date", txtLoadtime.Text);
                cmd.Parameters.AddWithValue("@order", txtOrder.Text);
                cmd.Parameters.AddWithValue("@shipper", txtShipper.Text);
                cmd.Parameters.AddWithValue("@vendor", txtVendor.Text);
                cmd.Parameters.AddWithValue("@warehouse", comboBoxWarehouse.SelectedItem.ToString());
                cmd.Parameters.AddWithValue("@comments", txtComments.Text);
                cmd.Parameters.AddWithValue("@part1", txtPart1.Text);
                cmd.Parameters.AddWithValue("@part2", txtPart2.Text);
                cmd.Parameters.AddWithValue("@user", Environment.UserName);
                cmd.ExecuteNonQuery();
                MessageBox.Show("Record Updated Successfully.");
                con.Close();
                dataGridView1.Refresh();
                ClearData();
            }
            else
            {
                MessageBox.Show("Please Select Record to Update.");
            }
        }

The form loads correctly, and the textboxes are populated correctly from the DataGridView SelectedRow. When I modify the textboxes and click on the update button, I get the following error on the cmd.ExecuteNonQuery() line: Additional information: Incorrect syntax near '('.

I can't see any parentheses missing anywhere. I can't seem to track down where the error is in the update process.

What I have tried:

I scoured the code and did find a square bracket missing in the SqlCommand statement, but fixing that has not resolved the problem. I am following the instructions on this site (http://www.c-sharpcorner.com/uploadfile/1e050f/insert-update-and-delete-record-in-datagridview-c-sharp/)