Facebook and Instagram Shop issues

Since we started using cloudflare firewall we have issues with our facebook shop xml feed and its not updating from the link. We have to download the xml file to our computer manually and update the feed. But even when we do that the new products, do not appear.
We are thinking that maybe we are blocking facebook from getting links from our website but we cannot find any solution. We even tried to allow most of the countries we had blocked and we still have this issue.
Does anybody know how to solve this issue or where this comes from ?

Thank you in advance.

Are you seeing events in the Firewall Log that look like they’re from Facebook?

I see the blocked IP’s but I can’t seem to find a clear indication on which is Facebook. I thought it was because I was challenging some countries like the US but allowing full access to those countries did not change a thing.