1. You need to create instance of subckt of your extracted circuit
2. YOu need to connect instance's pins to some nets with voltages.
3. The errors show that these nets are not connected to anything
4. YOur commented simulation works because there is no unconnected nets (0 nets)
5. You might want to use latest ngspice of ngspice from openlane's docker image instead, just in case it may cause issues (not this particular issue)