When I save the new Pitch, it doesn't show

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!
Yes, due to the Data Validation Rule that was made in the steps before you won't be able to save the Pitch.
Screenshot 1 is to capture the error message that come when you try to save a Pitch with a Equity Percentage over 100%. Therefore, your Screenshot one will be similar to the one above that from the lab.