print button shows part of php-code

hi there, when i open an post in easy discuss then the url in the print button shows a part of php-code (" ?>")

post-url: https://www.vertragstresor.de/forum-fuer-senioren/punkte-im-forum-sammeln-und-in-attraktive-rabatte-wandeln
example:

<a data-original-title="Drucken" rel="ed-tooltip" class="btn btn-mini" onclick="window.open(this.href,'win2','status=no,toolbar=no,scrollbars=yes,titlebar=no,menubar=no,resizable=yes,width=640,height=480,directories=no,location=no'); return false;" href="/forum-fuer-senioren/punkte-im-forum-sammeln-und-in-attraktive-rabatte-wandeln?tmpl=component&print=1; ?>">

			<i class="icon-print"></i>

		</a>

could you please tell me the pfp file so i can fix it by my self?

thanks in advance

Rene