Update Ispconfig3.php

And Please edit file

/usr/local/ispconfig/interface/lib/classes/remoting.inc.php

Line 2146
```php
$rec = $app->db->queryOneRecord("SELECT id FROM dns_soa WHERE origin LIKE '$origin%'");

change to

$rec = $app->db->queryOneRecord("SELECT id FROM dns_soa WHERE origin LIKE '".$origin."%');
```