iCloudProblem with 'helper app.' Numbers won't open files
I'm on High Sierra, 10.13.1 and Numbers just updated yesterday to 4.3.1
Get a screen message: "iCloud Drive may not work properly. Check the iCloud Preferences Pane.
"Couldn't communicate with a Helper App.'
??
Don't know what to do at the iCloud Preferences Pane. Not may options.
But one thing for sure, first problem noticed: Numbers won't open files.
iMac, macOS High Sierra (10.13.1), Cameras, music gear, Wacom tablet.