In addition to cleaning and lubricating sliding door tracks you want to lubricate the door lock.
Sliding door lock stuck closed.
In order for smooth and easy operation there is some slack that can potentially cause your door to come off the track.
If possible post a photo of the lock.
Your sliding door operates on a track to open and close.
The best way to lubricate any lock is to disassemble it and use an aerosol lubricant to flush away grime and coat the moving parts of the lock.
There should be a stop on the top or bottom of the door that the doors hits to prevent the door from sliding to far.
The pictures look like to me that the door slid past the stops.
The mechanics of the lock have broken leaving the top section of the door completely.
Difficult to advise you on how to handle the lock without seeing it.
Power door works fine now.
Open close lock unlock then 2 days later it did it again.
If you can feel your door moving in a direction other than completely straight from left to right then your sticking door can be caused by a misalignment.
In this video i attempt to open a patio door that has got stuck locked.
If you can t budge it at all it most likely is the lock.
Sometimes the set screw holds a cover plate on take the cover plate off and then you can get at the screws underneath the cover plate.