Having to answer for all that you could be dealing with is a waste of time.
Manual garage door is stuck from outside.
Lodged garage door track.
To open it up all you need to do is thread a coat hanger or hooked piece of wire through the top of the door and open the emergency latch which can also be done by the rope many emergency latches.
Enter the garage by the side door then you can open the main door using the internal handle.
You need to get inside the garage to determine what is causing the door to stick.
This can be a quick fix by identifying the object and then removing it.
Check to see if anything a shovel broom etc fell and is now stuck in the track that is causing it to be lodged.
It could be anything from a failed garage door opener to a failed track wheels off their track broken spring etc.
Both jobs are relatively simple and we would normally be able to do either as part of a standard call out visit.
So focus on getting inside.
Garage door locked from the outside.
When in one of these modes it may open once using the remote then must be unlocked from the.
Your jammed garage door can be caused by something as simple as an obstruction in the track.
These things can leave you at the mercy of a lo.