phase noise spectrerf
I think that you should check that you VCO started properly. You can use: results->direct plot->main form->PSS->voltage and check time option then plot the output net and check its amplitude, or you can also check saveinit option at PSS and follow the same previous steps but choose startup transient V except for voltage. If the oscillator doesn't start, you should first check that you have enough gm, then you should try using a different initial condition.
You should also check the output log and see if there's a warning at PNOISE. If there's one, try increasing tstab or changing the accuracy.
Also, make sure that you plot PHASE NOISE of the PNOISE plots.