Data Relation Error?

I also have staff members that speak multiple languages, which you can see in see in the Sheets screenshot above. So, here’s what’s been generated in the Data tab. Keep in mind that I have not even created a Badges relation, even though it’s being displayed in Data. And for some reason, it’s not allowing me to edit it, or delete it.

UPDATE: I deleted the Languages 2 column, and changed the Languages 1 header back to Language, and it removed the 2 relation columns, including the one I couldn’t edit. Same thing for Badges… I deleted the Badge 2, Badge 3, Badge 4, Badge 5 columns, and then renamed the Badge 1 header to Badge. And it resolved the issue. So, here’s my next question then…

How can I set it headers within Sheets to display multiple languages and badges for a staff member?