Hello Christian,
Thanks for writing in! You are having some issues because there is a JS error on the page. It is coming from this JS code block:
<script type="text/javascript">
<!-- start Mixpanel --><script type="text/javascript">(function(e,a){if(!a.__SV){var b=window;try{var c,l,i,j=b.location,g=j.hash;c=function(a,b){return(l=a.match(RegExp(b+"=([^&]*)")))?l[1]:null};g&&c(g,"state")&&(i=JSON.parse(decodeURIComponent(c(g,"state"))),"mpeditor"===i.action&&(b.sessionStorage.setItem("_mpcehash",g),history.replaceState(i.desiredHash||"",e.title,j.pathname+j.search)))}catch(m){}var k,h;window.mixpanel=a;a._i=[];a.init=function(b,c,f){function e(b,a){var c=a.split(".");2==c.length&&(b=b[c[0]],a=c[1]);b[a]=function(){b.push([a].concat(Array.prototype.slice.call(arguments,
0)))}}var d=a;"undefined"!==typeof f?d=a[f]=[]:f="mixpanel";d.people=d.people||[];d.toString=function(b){var a="mixpanel";"mixpanel"!==f&&(a+="."+f);b||(a+=" (stub)");return a};d.people.toString=function(){return d.toString(1)+".people (stub)"};k="disable time_event track track_pageview track_links track_forms register register_once alias unregister identify name_tag set_config reset people.set people.set_once people.unset people.increment people.append people.union people.track_charge people.clear_charges people.delete_user".split(" ");
for(h=0;h<k.length;h++)e(d,k[h]);a._i.push([b,c,f])};a.__SV=1.2;b=e.createElement("script");b.type="text/javascript";b.async=!0;b.src="undefined"!==typeof MIXPANEL_CUSTOM_LIB_URL?MIXPANEL_CUSTOM_LIB_URL:"file:"===e.location.protocol&&"//cdn.mxpnl.com/libs/mixpanel-2-latest.min.js".match(/^\/\//)?"https://cdn.mxpnl.com/libs/mixpanel-2-latest.min.js":"//cdn.mxpnl.com/libs/mixpanel-2-latest.min.js";c=e.getElementsByTagName("script")[0];c.parentNode.insertBefore(b,c)}})(document,window.mixpanel||[]);
mixpanel.init("1034fca8f494f0eadf7d39236a1cde96");</script><!-- end Mixpanel -->
</script>
Please contact the source of this code and make sure that is valid and correct. In the meantime, temporarily remove the code, edit the page in question and save your changes.
Best Regards.