Fatal error: Uncaught  --> Smarty Compiler: Syntax error in template "file:/home/httpd/vhosts/lokstadt.ch/httpdocs/main/templates/site/actions/singlepage.tpl"  on line 61 "<iframe width="{$vimeo_obj->width}" height='{math equation="x + y" x=`$vimeo_obj->height` y=2}' allowfullscreen="" src="{$video|cms_video_url}?title=0&byline=0&portrait=0&loop=1&autoplay=0&background=0&muted=1"></iframe>"  - Unexpected "`" <-- 
  thrown in /home/httpd/vhosts/lokstadt.ch/httpdocs/web-inf/smarty/sysplugins/smarty_internal_templatecompilerbase.php on line 61