My camera sensor is tilted, how do I realign it?

I dropped my GX85 when getting out of a car in a parking lot and the sensor got stuck in the top left. After getting the sensor unstuck it now sits in the camera diagonally instead of level with the camera. This results in the top left corner being darker, or sometimes just be completely dark with no detail.

No idea how I should go about fixing this :’( thanks friends.