Quite strange, unless someone took the doors off at some time.

There are two hinges on the door. Using a pencil, scribe both hinge plates where they attach to the A pillar. Break the top hinge nuts loose, but do not loosen! You don't want the top hinge to move. Loosen the bottom hinge nuts and slide the hinge inward about 1/4 inch. Snug the bolts and check the door fit.

Remember, I never had to do this. And the doors are very heavy, which is why you don't want to loosen the nuts too much. It might be a two person job?? One to hold the door and the other to work the bolts.
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My back feels better when I sit in a Volvo seat