Rear Window Shade Malfunction

The issue started yesterday when I accidentally hit the rear window shade while driving. The shade has been stuck there ever since I parked the car and went inside for the night. I recently checked to see if I could lower the shade and, initially, the shade started down but stopped at a certain point. After continuing to mess with it (the button, not the actual shade), the shade no longer moves at all.

I watched a video to see if there was anything I may have been missing, and it said that the shade should automatically move down upon reversing. So I put my car in reverse but to no avail. Has anyone experienced this problem before? Are there any quick solutions? Should I try delicately moving the shade back down?