Ошибка при сериализации от клиента серверу

data = BitConverter.GetBytes(true);
stream.Write(data, 0, data.Length);
course.Add("01");
course.Add("081");
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream m_stream = new MemoryStream();
formatter.Serialize(m_stream, course);
data = m_stream.ToArray();
stream.Write(data, 0, data.Length);
 
stream.Close();
client.Close();
 
client = new TcpClient(server, port);
stream = client.GetStream();
data = new Byte[2048];//
 
stream.Read(data, 0, data.Length);
 
MemoryStream mem_stream = new MemoryStream(data);
formatter = new BinaryFormatter();
addresses = (DataTable)formatter.Deserialize(mem_stream); /// ОШИБКА ТУТ

// Сюда будем записывать принятые байты
byte[] bytes = new byte[2048];
 
MessageSender(r_client, BitConverter.GetBytes(version_bd));
// Принимаем 
r_client.Receive(bytes);
clientResponse = BitConverter.ToBoolean(bytes, 0);
 
if (clientResponse != false)
{
DataTable addresses = new DataTable();
r_client.Receive(bytes);
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream mSteam = new MemoryStream(bytes);
List<string> course = new List<string>();
course = (List<string>)formatter.Deserialize(mSteam);
 
addresses.Rows.Add(3);
addresses.Columns.Add();
addresses.Columns.Add();
addresses.Rows[0][0] = "Jeff 123 Main Street, Redmond, WA 98052";
addresses.Rows[0][1] = "Fred 987 Pine Road, Phila., PA 19116";
 
MemoryStream stream = new MemoryStream();
formatter.Serialize(stream, addresses);
bytes = new byte[2048];
bytes = stream.ToArray();
MessageSender(r_client, bytes);
}
 
r_client.Close();