Step 29 - there are only 10 meetings listed, none of the ones with Julia Chavez. Also, the meeting ID's are not loading like the screenshot in the lab shows it is supposed to.
Sorry you're stuck but there's almost always a pretty easy fix! Do NOT try to start all over again, uninstall Max's Pitch Package, etc. That can make it worse. There's a 95% chance the same snag/fix is listed & answered in the Help FAQ. But if you can't find it there, post your problem here.
Make sure you post in the right category below & be sure to include a screencap showing the issue!