Closet Door

[Art-n-Marge]

I can't help with getting new parts but I can comment about getting it back on track. If it pops off track you can probably get it back on track.

To put it back on track lift upwards on the door at one side and if there is a roller wheel on the bottom use a screwdriver or similar to raise the tab the wheel is attached to, and this should raise the wheel so you can clear the lower guide. When the wheel is in the correct position, release the tab so the wheel drops back into place. Then do the same for the other side of the door.

If your doors use nylon slides, then raising the whole door so that the slides can be repositioned correctly into the lower guides.