Crooked Fantastic fan cover

Re: 2018 T@b 320s
While camping, the wind caught the fan’s exterior cover and now when the cover is open the side with the arm is about 1”  higher.
It does open and close but doesn’t lock. The ‘lid’ isn’t bent, just lopsided.
I thought about removing the fan’s interior insect screen and try to straighten the cover but cannot get the screen off; I can swivel the screen frame but that’s it.

I did try tapping the crooked side with a pool noodle but that didn’t work.

Any suggestions are welcome…