Ask vans for specifics to your area of concern, but I’ll give a preview of what they might suggest. I’ve had an extra dimple, which you can flatten with a flat set once, and drill another hole on either side, or both sides, match drill to other parts, ie skin, and build on. I actually choose to replace my mistake anyway because it was on a top skin, but there are many repair options typically. I have used the flat set more then one to fix a dimple that wasn’t supposed to be, but yes the dreaded extra hole dimple happens as well.
This one since it’s the bottom of the skin, and not noticeable, I think could be a place to do the repair and build on, but again check with vans to be sure of the methods they suggest.