Here's a list of actions that you should take when your website is not working.

Connect from another computer/network
Try visit your website from another computer or network. If you don't have an additional network available, you can try visiting your website using your phone without wifi. If your website works in another network then it's possible your IP address has been temporarily blocked, your ISP caches your DNS or there might be something wrong with your network connection.

Test your website in a website checker
There are many different website testing tools out there, here are some of them:

https://tools.pingdom.com/
https://gtmetrix.com/

If your website works while usng those services, then your IP might be temporarily blocked.

Your domain's DNS is not set up properly
This is a very common issue. Use https://intodns.com to test your website and make sure it's pointing to the correct IP address.

If there's still something wrong, contact our support and we will help you out.