Cal here from Shopify, thanks for reaching out to us. Are you on a paid plan? Do you have a custom domain on your store? Can you give me the link and I'll take a look at what could be causing this issue?
there does indeed look to be an issue with your domain, 4meandher.online. It looks like you need to verify the domain, by receiving a new verification email. I'm going to send this up to our technical team who will look to issue you a new email in order to get that domain back working.
Can you email us using our email support line here and let me know the ticket number you receive back. I'll get that sent straight up to the team, who will look to issue you another verification email for your domain.