Cloudflare Blocking: Customers not able to leave review

Hi,

I just made a test order, marked it as completed and then from “Bulk Actions” choose “Send a Review Reminder”. Everything worked fine up until I wanted to submit my review. After clicking on the submit button I was redirected to my-domain.com/wp-comments-post.php where I was greeted with the headline “Sorry, you have been blocked”, followed by this message from Cloudflare, my CDN: https://imgur.com/a/Yz2Q6e9

I know there is a thread about this issue already, but it seems to be dead.

Best regards,

Stefan