K8018 LED not lichting up

Hello, i assembled the kit, but the LED will not lightup. I measured the voltage on D2 and it is 3,5V.
I disconnected the Anode D2 and D3 and it still is 3,5V. I don’t see any shortcircuit on the soldering side.
Can you help me?
Thanks Lars

So the IC’s won’t work.