The Pitch object you created in Lab 1a was supposed to be deleted in Steps 1-4 of Lab 1b to make sure you don't confuse it later on with the Pitch object you add by installing Max's Pitch Package. BEFORE YOU GO ON TO LAB 2A, YOU SHOULD DELETE YOUR OLD LAB 1A PITCH PACKAGE NOW USING STEPS 1-4 OF LAB 1B. Just be sure you are deleting the one you created. You can tell which is which in the Object Manager because it says "Pitch__c" next to yours. The one you should keep says "Maxz__Pitch__c" and you can't delete it anyway without uninstalling Max's Pitch Package--don't do that!