iTunes won't let me manually Back Up to iCloud any more
I used to be able to - it would do what it says on the Button -
I would click on the iCloud button, an manually back up by pressing Back Up Now -
but now it refuses to back up to iCloud. I have also tried again and again from inside the iPhone, it also fails every time.
What has happened to iCloud Back Up with my iPhone and iTunes? It used to work, until about a month ago, before I switched to Yosemite and the new iOS update.
If I can't manually do it, how am I supposed to Back anything up to iCloud? How can I fix this problem?
Thank you