For the life of me I cant figure out why the top part of my south wall has no power

Swapped around and replaced wires to breakers, although nothing was actually tripped i still replaced a few of the older breakers since I was in there.

Swapped wires to other breakers

I have no GFCIs in this building, think mother in law sweet amd/or single unit dwelling. We converted a workshop into a 1 bed studio, one day randomly the bathroom lights and outlets on the top part of my south wall stopped working. The outlets on the bottom work fine.

The outlets and light fixtures affected are from the original owner, we didnt change anything unless it was needed.

For the life of me I cant find ANY GFCI breakers. My snipe hunt had me crawling all over the place.

Im out of ideas, I cant get any power to the outlets. Granted I dont have a multi meter to test it but the outlet tester I have shows 0 power to the outlets.

So, no GFCI (allegedly) to find. Bottom part of the wall works fine. Nothing else in the building is affected besides the top part of the south wall I cant figure this out at all