So I have an issue with my driver's side door (well, along with the inability to lock, or open from the inside) that keeps getting worse. I can't tell what the root cause of the issue is, or how to fix it. The door seems to be literally splitting into two pieces (see attached images).
Has anyone run into this issue? If so, how could I fix it without replacing. I can't afford a new door, so I was thinking some kind of brace scenerio. Any help would be appreciated!