Important: To fix a field's name, you have to edit the Field Label AND the Field Name so they are BOTH correct

1. Click the Setup gear (upper right) and select Setup

2. Click the Object Manager tab (not the down-arrow) on the upper left, next to the Home tab, and scroll the list in the central panel to find & select whichever object contains the field you need to fix–it'll be either the Pitch, Meeting, Meeting Attendance, or the Lead object, depending on which lab you're working on

3. Click Fields & Relationships on the left-hand vertical menu

4. Click on its name and then click the Edit button that appears in the middle

5. First correct any mistakes in the Field Label (this is what gets displayed to users) and then click on the Field Name slot below it (SF will pop up a warning - just click OK)

6. Now make any fixes you need to make sure Field Name is exactly the same as Field Label except NO SPACES in Field Names–put an underscore in place of any space between words, eg "Business_Name" (Field Name is what SF and the Grader App use internally)

7. Click Save and SF will pop up a warning - just click OK and then click Save again

8. Re-grade by using the App Launcher to open the Grader App and follow instructions to run the scoring routine again and then be sure to reload the page to see the updated error list & grade certificate