FIX

common/modules/triggers/views/trigger-admin/testing.php

 <?php
-echo "ASD"; die;
 $email = 'bystrov@kupitsite.ru';
 $sender = new UnisenderAPI();
 // Create the send list
 $newListId = $sender->createList();
+
+echo $newListId; die;
 // Subscribe user to new List
 $sender->subscribe(['list_ids' => $newListId, 'fields' => ['email' => $email]]);
 // Create new message