How to fix washing machine door handle
I am suspicious your fix will not work unless you fix this (arrow).



Your handle is meant to have a top and bottom pin.  Those transmit the pull forces equally to the top and bottom of the door.  Your top pin is gone and the plastic there has cracked.  

If you have the handle with only the bottom pin it will pull asymmetrically and pull the top forward.  It will not stay.  If you substitute some sort of top pin (a bolt with a nut would probably work) the problem is that the plastic of the frame is cracked and the bolt will pull loose or worsen the crack with use of the handle.

Fixing cracked structural plastic is not easy.  You cannot just glue it together because the forces on that area will (again) crack thru the joint.  You would need to reinforce it with some overlay.  Before I embarked on that I might see if there were a dead washing machine of the same make at the washing machine junkyard, and take the whole door off of that.  You might be able to fix the cracked plastic with a layer of epoxy over fiberglass mesh to reinforce over the crack but you need to make sure that the fix does not bulk it up such that it cannot clear other things in its path when you close it.