Immediate PHP Error Hot Fix

I have a 500 Error havin to do with a session issue. You will connect to my PC via anydesk, I will show you the error, you will then fix it. Simple. Dont over complicate this. If youre not willing to do this or you dont know how then please dont bid... (Budget: $10 - $30 USD, Jobs: Debugging, MySQL, PHP, Troubleshooting)