Animosity is right that you should be careful to include as much of the asked-for information as possible. It helps you get a solution much quicker, and otherwise we have to largely guess.
Are you trying to use server-side copying? (and if so, have you enabled the feature?)
If you can't even copy normally (non-server-side) then it must be a much more basic problem and we probably need to see your config and some logs (remember to redact any sensitive passwords in config)