Re: 'An unknown error occurred. Please try again later.'
Not even a store, just as a buyer? I experienced that, it would be the email. I had an obvious name for an email (for an et sy store), thought I was lucky to get it, so obvious I think it had been used before and trashed, it was on et sy's black list already. Grab another email address and try again.
People use alias emails, get banned on et sy than deregister it, making it available to the next user.
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