Server Error: 4102

Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'

Windows Live Mail Error ID: 0x8DE00001

Can someone please help me in trying to work out what's wrong. I've already tried signing out and signing in, uninstalling the whole windows essentials, and restarting my computer. 

Thank you.