Google is reporting a service issue with Google Drive, starting at 10:08 AM today. The latest Google Status information is available at:
https://www.google.com/appsstatus#hl=en&v=issue&sid=5&iid=df974d012febcd7ad8ef758e5ae79327
We will provide updates when they become available.
Please accept our apologies for any inconvenience this issue may have caused.
Update 1:45 PM, July 12 2018: Google reported at 10:54 AM, July 12, 2018 that the problem with Google Drive has been resolved.
-Computing and Communications Services