I been stuck on this for a while and I am not sure on what to do. The description says "There's a problem with the Meeting Attendance object field Contact Name (Steps 83-85). Either it's totally missing or the naming got messed up & now it needs special instructions to get fixed–just editing the label won't work! This is needed to connect the Meeting Attendance object to the Contact object. Without that connection, you really can't add Meeting Attendance records that go with a Contact record, as you're supposed to do at the end of Lab 2b. If you want to fix this and re-grade, " Can anyone help as I am not sure what to do.
Well, your screencap is just a list of objects. That's not relevant.
What it's telling you is that the Contact Name field that you were supposed to add to the Meeting Attendance object is either missing or you set it's settings wrong. It's needed because it's what connects the Meeting Attendance object to the Contact object.
Go to Setup > Object Manager > Meeting Attendance > Fields and Relationships. If you see Contact Name there as a field, delete it and remake it again by clicking New and then doing Steps 83-85.
Note: When you get an error message, there's a link that tells you how to fix it so click the link to see those instructions.