Video URL bug

[kevXZY]

When I add a video URL to the ITM, it shows a weird variable on the image : COM_SPSIMPLEPORTFOLIO_WATCH

Printscreen : http://i.imgur.com/70CPPtW.jpg
My Settings :
System Information
Setting Value

PHP Built On Linux webm286.20gp.ha.ovh.net 3.14.33-grsec-hosting-web-3.14 #1 SMP Thu Apr 16 08:53:31 UTC 2015 x86_64
Database Version 5.5.46-0+deb7u1-log
Database Collation utf8_general_ci
PHP Version 5.4.45
Web Server Apache
WebServer to PHP Interface fpm-fcgi
Joomla! Version Joomla! 3.3.6 Stable [ Ember ] 01-October-2014 02:00 GMT
Joomla! Platform Version Joomla Platform 13.1.0 Stable [ Curiosity ] 24-Apr-2013 00:00 GMT
User Agent Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36