Ted here from Shopify, thanks for reaching out to us!
I've taken a look at the store and I can see that it's up and running successfully as shown here for example. I'm not able to see any other errors and there are no other reports similar to what you've mentioned so far. On saying that, I'll just need some more information to help locate the error you are seeing. What device, browser and internet provider are you using? Could you try accessing the site using a different device, browser and internet provider, such as your mobile phone device and provider, instead of wifi and a desktop? Could you clear the cache on your browser as mentioned here and make sure the browser you are using is up to date?
Please let me know how this goes!