Hmm, it seems you're increasing the wrong cycle - you want to skip cycle 5, not cycle 4 - and then run through the whole cycle, now with a wrong WFOCycle number. This is most likely the reason of the error message.

You have to experiment a little because this is not an official method. You could check if WFOCycle is 5, and then just quit(), or jump to the end of the WFO cycle by setting Bar to the final bar or a very high number. Or increase the WFOCycle in the EXITRUN, not in the INITRUN. All this is experimental, so no guarantee. If you can't find a solution, please post again and I'll try it myself.