Why is Instagram not connecting to my online store?

I need help. I’m in the U.S., my business account is activated on Instagram, have all the requirements for a shop on Instagram it says this “This Instagram can’t be selected because checkout on Facebook or Instagram is only available in some countries. If you want to select this Instagram, go back and choose a different checkout method”

I don’t know what to change or do. It would be appreciated if you could help me.

Thank you!