Finally worked this out, you can manage equipment grids remotely if the vehicle has been placed before.
When this mod tries to add the equipment once the spider lands, it tries and fails to add ghost equipment causing the crash.
Also, the scout-o-tron equipment grid is limited to 6x4, so 47 solar panels wouldn't fit. You can always send down more and construction bots can move equipment in / out of the grid.
Did you upload from an older TFMG version pre 0.4.0?
But anyway, finally fixed, new version will be released soon