Folder on Dock with big ?

[420benz]

Don't know how to find this folder. L looked in Finder,Documents and it is not there. I know it is somewhere. Need help.

 

[kpgh554]

Don't know how to find this folder. L looked in Finder,Documents and it is not there. I know it is somewhere. Need help.

If all you see is a large ? means the app or program does not exist anymore maybe deleted etc so just pull ? out of dock let it go in a puff