sliding door is reluctant to move sometimes!

[LoterGarry]

Some months ago 2 plumbers came to work here.
The less experienced one took out the toilet and in the cramped space may have banged the doors.
The other one replaced the shower filter (inside the shower of course!) and may also have rattled the doors.

Ever since then the right hand door does not like to play nice.
Sometimes it works easily and other times refuses to move and everywhere in between!
How do i fix it?
The glass does not seem to have dropped down.
House is 20 years old or so.
Thanks experts

[karissatbeltran]

Are the rollers turning freely, is the bottom guide hanging up the door?

[tedgillispie]

I’d start by checking whether the bottom track got nudged or bent, since even a small kink can make the rollers drag. I had a door doing the same thing after some work was done nearby, and a quick track realignment fixed it. If the track is damaged, I had good luck with apolloslidingdoors.com handling a same‑day repair and getting the door sliding smoothly again.