I have tried in Firefox, Chrome, and Safari, all give the same error. Based on my research it seems they may need to download the file, re-upload it, and that will un-corrupt it? "Google Docs encountered an error. Please try reloading this page, or coming back to it in a few mi" - Google Docs Editors Community
The only Google Doc in Plex‘ documentation I’m aware of is the NAS compatibility list… and that seems to be working fine.
So either somebody fixed it or there was a temporary hiccup with Google themselves.
