6pro suddenly lost ability to audit my project deployed through vercel

A user reported that 6pro lost the ability to audit their project deployed through Vercel. Logs from September 21st at 16:01 UTC indicated that navigation was previously handled by a remote browser with an authenticated session, which is no longer accessible to the current tools. The user concluded that restoring authorized browsing access is the correct solution, rather than modifying the application or replacing user testing with administrative database entries.

This report uniquely details the specific error message and the exact UTC timestamp (September 21st, 16:01) from the logs, unlike other general problem descriptions.