An off-track door in Bloomingdale usually shows itself the same few ways. The door stops partway and won't move up or down, sitting cocked at an angle instead of square in the opening. You'll sometimes hear a grinding or scraping sound right before it stops, as a roller drags against the track instead of rolling inside it. On a two-car door, one side can visibly sit lower than the other, which is the bent-bracket-and-dropped-cable pattern more often than not.
Do not run the opener again once you've seen this. Every cycle after the door leaves the track puts more torque on whatever roller or bracket is still holding, and turns a track-and-roller job into a track-and-roller-and-panel job.
If the door is still sitting in the opening, even crooked, leave it alone and call. If it's come all the way off the track and is leaning or has dropped, keep the opener unplugged and stay clear of the door until someone's looked at the springs under tension - a door hanging off one side is still carrying spring load, and that's not a DIY moment.