LTspice Model Stopped Working
You probably had a .model card for your diode but deleted it? At any rate, you're using the default diode, without any settings, which means it's an ideal diode that has zero voltage drop and sharp knees in its transfer characteristics. If you'll add this to your schematic, it should work:
.model d d ron=10m roff=10meg vfwd=0.7 vrev=1k epsilon=0.1 revepsilon=50m

If, by any chance, you still have glitches, try adding some 1m...10m series resistance to the capacitors (right-click on the capacitors).
Be careful how you reference your nodes, because you have named the ground (zero, 0) net as both N and PE -- you won't be able to plot anything referenced to these names (i.e. V(L3,N) will not work).