New shops are sometimes put on vacation after opening due to regulations that require Etsy to verify banking information before allowing people to sell on Etsy. Check your spam folder for any emails from Etsy, since you are new, your PC may not recognise the url as a "safe" site and you may need to confirm it as legit for future emails. If you have an email from Etsy there, mark it as NOT SPAM and read it carefully, Etsy may need more information, or for you to confirm existing information before they can open your shop.
Go to your Shop Manager - Finances - Payment Settings and see if there is a red banner at the top of that page asking you to verify your bank. This is most likely the cause.
