It appears the half if hinge that attaches to the door has failed. Notice it has a relief for the rivets holding the other half in place
Bob from SWISCO responded:
January 13, 2021
I am afraid we don't carry hinges like this. You may be able to repair them with our 40-165 Storm Door Hinge Repair Kit, but I can't say for certain. I apologize for any inconvenience.