Limit Switch Error (Z-Axis)

It’s been a while since I’ve used my CNC machine. The following error occurs on the Z axis after I’ve loaded the project, successfully homed, & re-zeroed the axis:
Limit Switch Error.

Previously when I ran into this I would recenter my table offline and or switch USB ports, but that doesn’t seem to fix the issue now.

I’m wondering if I’ve managed to cobble together invalid settings or goofed on units - or worst case scenario a broken switch?

Thanks,

Did you try manually turning things so that the Z-axis will move down? ISTR that’s what the sheet w/ my Nomad said to do in this situation.