Form submit error, without any msg

I got no error msg.
I doesn't have any new database row.
The form post breaking , and I doesn't have a redirect.
Here is the full code:

function my_module_openform_submit($form, &$form_state) {
    
  $cs = curl_init('http://demo.gftforex.com:8080/registrator/servlet/gft.util.registrator.Registrator');
  curl_setopt($cs, CURLOPT_POST, 1);
  curl_setopt($cs, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($cs, CURLOPT_HEADER, true); // tells curl to include headers in response
  curl_setopt($cs, CURLOPT_POSTFIELDS,
  "can_trade=cfd" .
  "&who=FXFlat" .
  "&first_name=" . htmlspecialchars($form_state['values']['first_name']) .
  "&last_name=" . htmlspecialchars($form_state['values']['last_name']) .
  "&PASSWORD=" . htmlspecialchars($form_state['values']['password']) .
  "&country=" . htmlspecialchars($form_state['values']['country']) .
  "&email_address=" . htmlspecialchars($form_state['values']['email_address']) .
  "&initial_deposit=" . htmlspecialchars($form_state['values']['initial_deposit']) .
  "&base_currency=" . htmlspecialchars($form_state['values']['base_currency']) .
  "&groups=" . htmlspecialchars("GFTUK Gold Forex Trading") .
  "&Message=");
  //curl_setopt ($cs, CURLOPT_FOLLOWLOCATION, 1);
  $result = curl_exec($cs);
  $headers = curl_getinfo($cs);

  if ($headers['http_code'] != '302') {
    drupal_set_message(t('Communication with server failed'));
  }
  else {
    // "User-Id: " header
    preg_match('/User-Id: ([\w]*)/', $result, $m);
    $username = $m[1];
    curl_close($cs);
    
     // Sending notification e-mail to the user
     _user_demo_email(
      $form_state['values']['email_address'],
      $username,
      $form_state['values']['password']);

    // Sending notification e-mail to the site admins
    _admin_demo_email(
      $username,
      $form_state['values']['email_address'],
      $form_state['values']['phone'],
      $form_state['values']['first_name'] . ' ' . $form_state['values']['last_name'],
      $form_state['values']['initial_deposit'] . $form_state['values']['base_currency']
    );
    
    // Insert the reg data to the DB
    $id = db_insert('gft_demo')
    ->fields(array(
      'demoid' => $username,
      'first_name' => $form_state['values']['first_name'],
      'last_name' => $form_state['values']['last_name'],
      'country' => $form_state['values']['country'],
      'iskola' => $form_state['values']['iskola'],
      'email_address' => $form_state['values']['email_address'],
      'phone' => $form_state['values']['phone'],
      'initial_deposit' => $form_state['values']['initial_deposit'],
      'base_currency' => $form_state['values']['base_currency'],
      'username' => $username,
      'gft_timestamp' => date('o-m-d h:i:s'),
    ))
    ->execute();

    // Redirect to the Thank you page
    $form_state['redirect'] = 'node/61';
  }
}

So after I submit the form, the site doesn't do anything. It doesn't insert data to the db, doesn't send the mails. Simply do nothing.

If I cut out the db insert section the code working well. Sending the mails and redirect to the Thank you node.

No errors in the log table.