MacBook Keychain problems
Try this:


Open KeyChain app
Lock the Keychain by clicking the lock on the top left corner, if it isn't already.
Unlock the Keychain using your Admin Password. Reset iCloud KeyChain (it may ask you to automatically - if so, say yes. If not. If not, do it manually).
Restart computer.


See if that works.  Or check this thread:

https://discussions.apple.com/thread/5467304?tstart=0