Ok if the door handle has snapped then the only way you will get into this without breaking the door is from the top.
Pull the washer out and remove the top.
From there look down the front on the inside on the right and you will see the door lock.
Make sure its unplugged and then reach down there and feel the lock on the left and there is the metal door pin. You need to push this door pin to the left and at the same time pull the door handle and this will allow you to open the door from there.
Then you can also replace the handle as well from there.
Try that and let me know what happens .