Uncaught ReferenceError: jQuery is not defined

Your facebook pixel code is broken. It seems that you’re missing a </script> or have an extra <script> in there. Where did you get this code and how did you add it?

<!-- Facebook Pixel Code -->
<script>
  !function(f,b,e,v,n,t,s)
  {if(f.fbq)return;n=f.fbq=function(){n.callMethod?
  n.callMethod.apply(n,arguments):n.queue.push(arguments)};
  if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';
  n.queue=[];t=b.createElement(e);t.async=!0;
  t.src=v;s=b.getElementsByTagName(e)[0];
  s.parentNode.insertBefore(t,s)}(window, document,'script',
  'https://connect.facebook.net/en_US/fbevents.js');
  fbq('init', '115661712475335');
  fbq('track', 'PageView');
<script>
  fbq('track', 'ViewContent');
</script>
</script>
<noscript><img height="1" width="1" style="display:none"
  src="https://www.facebook.com/tr?id=115661712475335&ev=PageView&noscript=1"
/></noscript>
<!-- End Facebook Pixel Code -->

Yup. Did it?

I still see that code. Clear any cache.

disable your caching and optimization plugins.

I’m still seeing links to content from autoptimize, so if you did disable that plugin, you still have stuff being cached someplace.

Please don’t offer to send or post logon credentials on these forums: https://ww.wp.xz.cn/support/guidelines#the-bad-stuff

I do not have, nor do I want access to your site.

Have you considered hiring a experienced WP developer to help you with this?

disable your caching & optimization plugins for now.