It is ordinarily caused by anobject being in between the entryway and frame and without your knowledge you just shut theentryway.
How to repair cracked door frame hinge.
Use a hinge binding tool hinge doctor to repair binding hinges.
In particular the side where the hinges fasten onto the door tends to crack or split in certain situations.
The impact pulls the pivot sideways hence breaking the door slightly.
Another hint is to use a long screw in one of the holes in the top most hinge long enough to penetrate the stud.
Over time the weight of a door can cause screws to pull out of their holes and make the hinges loose.
If you have a centering hinge drill use the hinge as a template and the finish repair will be better than new and last for years.
Cracks on doors are everyday problems.
Hinge pins that are not fully inserted into the hinge.
These tools slip over the hinges when the door is closed.
Try tightening the hinges which can loosen up over time causing the door to sag.
Specifically the sideways that the pivots attachedto the entryway will in general break in some circumstances.
Many problems with frames and doors can be fixed by adjusting the hardware.
How to fix a door that cracked where the hinges go.
The door is pulled open just past the point where the hinges bind.