IDL 350 Indesit Door Won't Shut ?

My dishwasher door clicked open recently without the appliance being on, I thought nothing of it until I came to use it again and discovered that the door won't shut fully. I've examined the door seal, the hinges, anything that may be obstructing and there's nothing, its definitely the door latch. I've tried with a screwdriver to see if anything should move but its all solid. Does this sound like its something I can fix myself?

Steve-D
December 2017