Seems the attempt to index local 'sub' (a nil value) error is back with a vengeance

Failed to load mods: recycling-factoriopedia/data-final-fixes.lua:54: attempt to index local 'sub' (a nil value)
stack traceback:
recycling-factoriopedia/data-final-fixes.lua:54: in main chunk

So sorry for the delay, I've been having serious procrastination issues lately.
Anyway, I am unable to produce the error on 2.0.32 with Space Age. So my guess is it's a mod causing the problem, can I have a save file to test it with? And the factorio version you are having problems with? (Also Are you using space age?)

Same Prob on Turret and gun-aai_laser_tank

Failed to load mods: recycling-factoriopedia/data-final-fixes.lua:54: attempt to index local 'sub' (a nil value)
stack traceback:
recycling-factoriopedia/data-final-fixes.lua:54: in main chunk