GS338 and debug mode

[cumbe]

Hi.

In two GS338 installations, with debug mode enabled I have errors in Settings inside of inputs fields:
- Custom Permalink Structure
- Email Address
- Display name

witl the following message:

Code:

<br /><b>Notice</b>:  Use of undefined constant FILTER_SANITIZE_FULL_SPECIAL_CHARS - assumed 'FILTER_SANITIZE_FULL_SPECIAL_CHARS' in <b>/www/htdocs/xxx.xxxxx.com/admin/inc/security_functions.php</b> on line <b>260</b><br />

Regards