Ethernet not working

I wanted to tap the network from the laptop with my PC with the Ethernet cable to which the laptop is connected (family house, router is in the living room and laptop is connected to it because it has a power supply unit and the PC does not), but you can IT nerds check out the pictures:

By the way: The Ip4 address is set correctly (i.e. 192.blablabla…)

do not have an adapter, would be incredibly grateful if someone suggests solutions!

As far as I know, this is not possible. You have to connect the PC directly to the router. But what you can do is set up a hotspot on the laptop and then forward the Wi-Fi via radio.

But then you don't know your way around, as it worked as normal a few days ago