Everything seems to be oriented around the 3D cursor and when I tried changing the transform pivot point as you’d shown it made it no longer able to be rotated or scaled.
The transform pivot point was set to “3D Cursor” and I have no idea how it got like that but even after changing it I can’t seem to fix it.
Thank you for your help though, much appreciated

In this image I have the crater selected, but it can only be rotated or scaled according to the 3D cursor