401 Unauthorized error - creating app with remix

Hi,

I am developing an application using Remix and have followed the Shopify documentation without making any modifications to the code. However, upon installing the application on my store, I encountered an error.

I am currently facing significant difficulties in resolving this issue. Despite following various YouTube tutorials and reviewing the Shopify documentation, as well as examining answers to similar problems, I have not been able to find a solution.

Could someone assist me in resolving this issue?

Have you got something??