No Rotation, Sensors loose or broken? Which ones?

My phone fell down yesterday and afterwards I couldn't rotate it anymore.

Also when watching 360° Videos, I cannot look around anymore.

I installed an app to get sensor data, and it's not showing an accelerometer – and there should be a rotation sensor as well, right?

Did that chip unplug when the phone fell down, so that the device is not recognizing it anymore?

Maybe it's just broken?

How can I find out, and is it possible to replace that unit?

Thanks guys!