Support forum

I used the following code but its not working
private void OnMessageReceived(string fromAddress,
string toAddress,
string message,
string messageType,
string messageId,
string smsc,
string pdu,
string gateway,
DateTime sendTime,
DateTime receiveTime)
{
// Get current date and time
DateTime currentDateTime = DateTime.Now;

// Example database query (pseudo-code, replace with actual query logic)
string queryResult = QueryDatabase(message);

// Example HTTP request (pseudo-code, replace with actual HTTP request logic)
string httpResponse = MakeHttpRequest("http://example.com/api", message);

// Compose the reply message
string replyMessage = $"Thank you for your message received at {receiveTime}. " +
$"Query Result: {queryResult}. " +
$"API Response: {httpResponse}.";

// Send reply message
PostSendMessage(fromAddress, "", replyMessage, "", "", "", "", 0);
}

// Pseudo-function to demonstrate database query
private string QueryDatabase(string message)
{
// Implement your database query logic here
return "Example Database Result";
}

// Pseudo-function to demonstrate HTTP request
private string MakeHttpRequest(string url, string message)
{
// Implement your HTTP request logic here
return "Example HTTP Response";
}

Please help me?