2:1 MUX in LTSpice using CMOS Transmission Gates, implementation

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Joined Dec 12, 2020

am trying to create, for a project, a 2:1 Multiplexer using CMOS Transmission gates. This MUX requires 2 transmission gates, so 4 total transistors. I have seen some implementations use an inverter when connecting the Select bus.

I am pretty bad at electronics. Take a look at my attempt so far and please let me know what to fix. I am simply trying to make a 2:1 Mux.
I am currently getting this error in LTSpice:
Singular Matrix: Check node nc_03

Attatched is my LTSpice attempted designMUX.PNGerror.PNG