Frigidaire Door Heavy

A little while back I heard what seemed to be a clunk from the dishwasher. It sounded like something inside fell. After this the door became very heavy as if it is not being supported any more. I took the cover off the door, but could find nothing out of place. What could have happened?

Thanks

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Replacement parts for FRIGIDAIRE GPDB998JC0 Frg(v0) / Dishwasher | AppliancePartsPros.com

Could be a spring or the linkage broke (item 1 in Section 2)

My guess is I would have to take it apart to see which one correct? I guess I will just order the parts and return what I do not use.

Thanks