PhysicsAsset crashes project

Hello.
I was editing my PhysicsAsset and while I was doing that there was an error about skeletalbody cannot be empty or something like that and a crash right after. Now when I’m trying to load my project it crashes.
I figured it’s the PhysicsAsset and I removed it and now it’s working. I moved the asset to another location. Now I see it in the editors browser but when I try to edit it crashes.
Now I managed to Export it as .COPY and as expected there’s a problem:
SkeletalBodySetups(29)=None

Is there any way I can edit those lines?

Yes, I know I can remake the PhysicsAsset but I might learn something while fixing this one.