At first glance, things look ok and the site does have a few contact methods like phone number and email. If you provided the reason they gave in an email…. that might help solve it. There are so many reasons Google could ban a site, that it’s a laundry list at this point.

One thing I notice is my browser says the site is not 100% HTTPS secure. I think the site images are only HTTP vs HTTPS…. the rest of the site is HTTPS I believe. That could causing your issue with Google.