It's called a "stacktrace", in a computer related sense, it's quite literally a stack. In this case, each step (instruction) is logged (traced).
In this case, it tells me that BC attempted to load a module (a py file) that in the end tried to load Camera.py(c), and that file contained some error.
So the idea is that if you replace that file (Camera.py) with a proper one, then it ought to work again.
Next attempt, open a command prompt (Win+R -> cmd -> Enter), then navigate to your BC directory (using 'cd <<directory name>>' to enter a directory, 'cd ..' to go up a directory '<<DriveLetter>>:' to go to a different drive), and then type the following:
dir /B /O:N /S >> listing.txt
And then attach the file listing.txt that will now have appeared (when the next command lone appears) in your BC directory to a post.