HAVING ISSUE WITH WRONGLY MADE PROCESS ORDER TYPE

I am facing issue with a process order 1833570 as this process order was made mistakenly with type ZPIM instead OF ZPI2.

So what happen - after giving pallet transfer ,shipping confirm it but it became with gr error. That s error not getting rectify as its showing no valid order showing for this, so we try to delete those pallet but its not happening.

        Problem is its showing stock both in positive and negative with same amount at shipping end but no stock showing at production end.

        So how to delete those stock.Need suggestion.as those stocks are against false order.