Facebook Page Messenger Not Working

Hi All,
I am hoping you can please help me. I have spent hours trying to figure this out!

I have a Facebook page that I have had since 2020. It is just linked to my personal Facebook account and I use it when I declutter to sell things. I did unpublished it for approx 12 months and have since republished it.
Now I cannot receive messages from the Page. I can see the the page in my messenger and I can see the old messages, but no new messages or inboxes are coming through.
I can't even see...

Facebook Page Messenger Not Working WordPress ...