Add blocks to Shop Page (Woocommerce)

Hello!

I’m trying to add my Etsy reviews to my Shop page (I’m using woocommerce).
For this I’m using an elfsight widget that just requires to add a code/html to the page for it to display.
I want to add it underneath my products so my customers can browse my reviews.
It works in all my other pages but not in the Shop page. It only allows me to add a Paragraph block but all the other blocks just don’t appear when I update. I can’t even use Woocommerce blocks on this page.

Any suggestions on how this could be done?
It’s crucial to me to add the reviews on this page somehow, I don’t mind if it has to be through a testimonials widget or plugin but none of them work.

Thank you in advance!

The page I need help with: [log in to see the link]