[Plugin: Facebook Page Publish] Can't connect with Facebook on additional site

I’ve succesfully set up the FB connect on 2 sites

On this site https://www.digitalscrapbookinghq.com the connection/permission flashes up then closes and it still wants me to connect again.

If I log in as another user on Facebook I can connect, but not with my account.

Any suggestions?

https://www.ads-software.com/extend/plugins/facebook-page-publish/