Q: My iPhone says it has not been backed up for 57 weeks

Signing in and out is what popped up the message, clicking the backup now Button worked thanks.

When I logged out and in from iCloud it said I had not backed up for 57 weeks, when I look at iTunes it shows the phone and said I had backed up 2 hours before to this computer. iPhone 6 ,9.3.1.

The phone had been working and updating just fine , the only issue being the dialog asking to approve it for iCloud kept coming up. then trying to resolve that suddenly I see I had not backed up, which surprised me. iTunes now says I backed up to iCloud 2 hours ago and your computer 4 hours ago. Hopefully the request for approval for iCloud dialog won't come back.