"You must be running the SSH2 module (ssh.xmod), which is under Export Control, in order to use theSCP2 command. SSH2 does not need to be enabled on the switch in order to use this command."
Also, there seems to be a problem with the permissions of the anonymous account. Go to Inventory Manager -> Tools -> Options scroll down to File Transfer Settings -> SCP Settings, uncheck anonymous and use the root credentials instead.
I've never tried that myself, however I would imagine since the copy is done via SCP, then SSH needs to be at least enabled and possibly set as CLI creds. Again, not positive, but I would give that a try.