Why am I seeing net::ERR_HTTP_RESPONSE_CODE_FAILURE in my app?

[DigitalAMarkt]

net::ERR_HTTP_RESPONSE_CODE_FAILURE

When I want customize my web or navigate or other stuff trough my app Shopify always shows me this error, but when I run shopify account on website I can normally customize my web.

Can you guys help me please?

[beauxbreaux]

The error code is pretty limiting with knowing what's going on. Shopify does have a way to put your site on GitHub now and you can do live updates with your code. This way if you get an error you can see more specifics as you can still open the site in the browser whereas Shopify often prevents you from saving the code if it has an error. If you haven't learned how to use GitHub it is a wonderful tool to help you keep up with versions of your code & editing your code in the browser with 'code spaces'.