LTspice - "Fatal Error: In Missing node(s)"
I suppose you wanted to add a node name (F4), but you ended up placing a SPICE directive (S). That's why the netlist shows Rload to be connected between the nodes N003 and ground, instead of what is seen in the picture, OUT. To correct that, delete OUT, and IN (same thing), and then add the proper naming: either with F4, or with the small A right between the ground and the resistor, in the toolbar. Or from the menu, Edit &gt; Label Net.
Not a big deal, but you renamed the MOSFET's designator from M to Q. That's usually reserved to bipolar transistors, though nothing will happen if you rename it, LTspice takes care of it, anyway (see the M§Q1 entry in the netlist). Just so you know.