Chain off track

by Lori
(Oxford, NC)

Hello,
My son let down the garage door and my daughter's car was not completely in the garage, so the door bumped her car and then went back up. The chain came off and now we can't get it to work. What can we try?
LWH

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Is anyone among family and friends handy enough to put the chain back on?

If you have already done so, what does it do now? Do you hear any noises? If so, what do they sound like?

The owners manual might help. What make and model is your garage door opener?