It pops up when I try to login with GitHub, or anything.
I get
You are trying to use a blocker on a POP navigation to a location that was not created by @remix-run/router. This will fail silently in production. This can happen if you are navigating outside the router via window.history.pushState/window.location.hash instead of using router navigation APIs. This can also happen if you are using createHashRouter and the user manually changes the URL.