Hi Garflik,
it’s hard to know which part has been damaged without swapping parts: do you have an Angel living nearby, so you could try to exchange parts?
In the waiting time, you can try to disassemble & reassemble the modules of your Fairphone and see if it changes anything.
I’d suspect your screen to be disconnected and the fingerprint reader as well, or worst, the core module to be damaged, but for this you might need to contact the support. Hoping they’ll take in within the warranty, otherwise it might be pricey, I don’t know what’s their policy with small falls…