Camera on laptop mackbook air not working after solution got on it

After solution got on it - does that mean that liquid was spilled on the computer?
Unfortunately, there is very little you can do to repair this without access to specific parts and tools. You can go to iFixIt.com and look at teardown instructions for your specific model of MacBook Air, but it is difficult and has a significant risk of damage.
Recommend if you need the camera, take it to an Apple qualified repair shop.