there seems to be a problem in the software which Apple don;t know how to fix - look at all the posts the past 14 days about this problem, and you will notice, not a single person complaining about it, managed to get it to work, and not a single response from Apple - accept the housewifes guide they post on how ti install the iCloud software everytime someone complains about this problem.
I really think of moving all my iCloud data to mega.nz - If Apple themselves don't know how to get your data out of iCloud, how secure will this be anyway ?