PenciDesign replied
Hi,
I've checked it and I see it's not issues related with our theme.
It seems you're using a plugin for create Sticky Ads for AMP - it caused the issue. Let's check and deactivate this plugin.
Or maybe you've added a custom code can't be validate for AMP via Customize > Header Options > Add Custom Code After <body> Tag
Also, the issues "The tag 'amp-ad extension.js script' is missing or incorrect, but required by 'amp-ad'. This will soon be an error." - to fix it, please go to Appearance > Customizer AMP > Homepage Options and check to Disable auto ads.
We've said about this in the documentation here
Best Regards,
PenciDesign