Hi! 

There’s a “Javascript broken” error flagged in my ahrefs report this week which seems to relate to Ultimate Blocks. I have two websites and both are affected. See screenshot for example.  

 A couple of pages are affected, here’s one as an example: https://www.emilyluxton.co.uk/england/art-in-sheffield/  

It gives this link as the broken Javascript: https://www.emilyluxton.co.uk/wp-content/plugins/ultimate-blocks/src/blocks/scrollby-polyfill.js?ver=3.0.0  

I don’t know what the scrollby-polyfill is so I can’t look for it to fix. I only really use Ultimate Blocks for the TOC, but one of the apparently affected pages is a tag page with no TOC on it. 

What does this mean and how can I fix it?

Emily