Leaders are not easy to fool. Where are the four leaders? If they are found like this, it will be very dangerous.
"Leadership, I'm sorry to bother you again. Due to work needs, the original document you signed has changed in some places, and you need to sign it again. " This statement can work, and leaders all know that the change in this situation is appropriate. This kind of thing often happens to me. The original signed document must be redrafted and re-signed because of the changes in reality, and the final document can only be invalidated.
"Leader, I'm very sorry. Due to work mistakes, some contents in the last document were wrong. I have corrected it now and need your signature again. " This kind of situation is to take the initiative to admit mistakes and explain the situation to the leaders, which will generally be understood.