How do I fix this issue on site? (Linking game progress)

Astrex

I’ve been shown something telling me to sync my game progress to the site account but whenever I click on it, it’s greyed out and I can’t access it.

I use Apple ID to save my progress so I was wondering if this is some issue, or that I need to have progress within the actual game itself with the email I used for this site as they are separate.

thanks,