Haha I just got shown an advert for Scotland advertising that Scotland is still open to all of Europe. Really trying to disassociate from the brexit chaos!
Awesome! Let's try to get you on there! So I think your issue is that your authorization endpoint is set to indiecert.net which doesn't seem to exist. You might want to use indieauth.com instead?
So looks like I'll be living in Madrid during 2019... Hit me up if you want to come visit!