"Sorry, something went wrong."
When I go on "iCloud - pages" in Safari and try to open up a virtual Pages document, I get this popup. "Sorry, something went wrong. This document can't be opened right now." Same goes for numbers. How do I fix this so it does open up so I can edit it? All system updated and security system up to par.
MacBook Pro (13-inch Early 2011), macOS Sierra (10.12.5)