I open and close it manually, usually. The problem is one of the two cables holding the door came off. It's too heavy to pull up and to keep it up.
Discussion
I had a similar problem once. I had to have the wife help lift the broken side to keep it balanced.
Yeah, last time it happened, i had a second set of hands and did the same thing.
I have 3 unsprung doors that I have to manually lift each use because the openers failed and I don't have enough bitcoin. Must be a wide door.