Chosen Solution
it says that there is not connected camera what do I do Update (12/05/2017) so I will explain I have never used the camera app before there is no drops or water damage and I didn’t touch the camera even when I opened it up I don’t know but the camera is and was always there (the computer is in mac os x the old one REALLY OLD)
I don’t think there can be anything else to do but unassamble the Macbook fully and reseat the isight connector or buy a new one. Here is the offical IFixIt Guide on how to replace it. MacBook Core 2 Duo iSight Replacement This holds the steps to disassembling your macbook replacing it. It also has a link to the IFixIt parts store where you can buy a replacement isight camera. Hope this helps! -Tails Era