Patreon social login not working

I’m getting this error message when a user clicks on ‘Patreon’ social login. Any ideas please?

Screenshot 2019-12-19 at 19.20.23

What is your instance URL? And how did you set the redirect URI in Patreon?

What is this URL? Where should it go to?

Currently it’s set to: http://www.prizetopia.win/patreon-authorization/

But that was defaulted. I didn’t input it. And it’s not a valid URL by the looks of it.

Read and follow carefully our docs at Configure Patreon integration with Discourse

Thank you. I missed this bit. Seems to be okay now.