What could be causing checkout issues on my ecommerce site?

[VincentCavret]

Hi, it there a bug with Shopify right now? "buy it now" gives that:

I can go on checkout passing through the Cart, but can't fill "region/country"?

website: www.oneoffedition.com password: IDD

Any guess here? I am desesperate!

Thanks

[Propero]

@VincentCavret ,

Look like your store is still a development store? Were you able to do this earlier?

[VincentCavret]

Hi @Propero , yes I was. My website will be live in 3 hours so I am freaking out! I contacted shopify support, they told me that it is because I had to enable my app "shipping rates by zipcodes" to take the hand on checkout. But my app is enabled for 1 week (see screenshot below), and I was able to do a complete checkout until today.

So I don't know what to do, I am waiting for the app support reply for now.