Source: NCP Engine
Explanation: The NCP engine did not find enough space to perform the file operation requested by the NCP client. This can occur when the request for space would exceed a directory quota set on the destination folder or its parent directories.
Action: Add space or free up space by doing any of the following:
Increase the directory quota.
If salvage is enabled, purge deleted files from the salvage area.
Delete files that are unwanted or unnecessary.