Access Token Issues with Public Shopify App

[vitalisimus]

Hello Shopify Community,

I am currently facing an issue with my public Shopify app where I can retrieve the AccessToken. Previously, I used this token for making requests to the Storefront API and the Customer Account API from a SPA. However, recently, this token no longer works for these purposes. I discovered that the requests are successful with a Public access token, which I found in the admin panel, and with the Storefront token. Is there a way to obtain not only the AccessToken but also the Public access token or the Storefront token within my app?

Any guidance or suggestions on how to resolve this issue would be greatly appreciated.