Import included survey,
Set security to

$config = array();
$config['encryptionkeypair'] = 'adc859c56ee59093ea87e46b204b9f93212faf7a6c67c7d54fda9d16848ca6f64b4fc929a988d896dc4dc5cf72a08545a0d4b430bf2ae75d928b6c9e827e93624b4fc929a988d896dc4dc5cf72a08545a0d4b430bf2ae75d928b6c9e827e9362';
$config['encryptionpublickey'] = '4b4fc929a988d896dc4dc5cf72a08545a0d4b430bf2ae75d928b6c9e827e9362';
$config['encryptionsecretkey'] = 'adc859c56ee59093ea87e46b204b9f93212faf7a6c67c7d54fda9d16848ca6f64b4fc929a988d896dc4dc5cf72a08545a0d4b430bf2ae75d928b6c9e827e9362';
return $config;

And try to send an email (debug=0 else there are a null)