Resolve React Error (Urgent)

Project Overview.

I have developed an HR software application using Bolt.new, hosted on Supabase, with a Super Admin and User interface. The application was functioning perfectly until I implemented authentication for login. Now, I encounter an error:

Error: "Authentication error: No valid session" in SuperAdminDashboard.tsx at loadUsers function (line 53:19).

This is one of the errors I recall, but there may be others I’ve overlooked. This is an urgent project, and I need an experienced React developer to diagnose and resolve this authentication error, as well as any other existing or subsequent errors that arise after fixing the current issue, to restore full functionality.

Job Responsibilities
Debug and fix the "Authentication error: No valid session" issue in SuperAdminDashboard.tsx.
Identify and resolve any other existing errors in the application that I may have forgotten to mention.
Address any new errors that emerge after resolving the authentication issue to ensure the application is fully functional.
Ensure proper session handling and authentication flow with Supabase in my React-based HR software.
Verify that the Super Admin and User interfaces work seamlessly post-fix.
Test the solution to confirm that user data loads correctly and the application is error-free.
Provide a brief explanation of all fixes for my future reference.