Can not get past import error: "The matching field you chose "Data Import ID" is not mapped and is required..."

Hello,

I keep getting this error: "The matching field you chose "Data Import ID" is not mapped and is required for an Update and Insert operation."

I did not choose Data Import ID though. Instead, I chose name under the "match by" label.

I am trying to "add new and update existing records".

Could someone please assist? Why does it not let me select email under that label? I remember it used to give that option but now it is not.