For future reference, if you get any errors copying files to the '..\Divine Divinity\Run\Dynamic' folder, the files in that folder can be safely deleted. This folder is used as a cache for the game. Files are created / copied there from the save game folder when you load, and written / copied from that folder when you save a game. The files will be re-created as required the next time you start Divinity. If there was a corrupt file in that folder, deleting the files should fix the problem. As long as the files the game is trying to copy actually exist, the problem is more likely in the dynamic folder than the saved game / startup folders.