I can’t send email via Gmail. I set an automation email task and it output this error message

and when I try to sign in again, it shows this

Is this Coda’s issue or Gmail issue? 
I can’t send email via Gmail. I set an automation email task and it output this error message

and when I try to sign in again, it shows this

Is this Coda’s issue or Gmail issue? 
I am having this same issue. When I try to connect, it opens up a new tab and nothing loads. I tried signing out and that didn’t help. I then tried disconnecting the pack and that didn’t work either. I also tried a different browser. Not sure where the issue is.
I’m having the same issue since 24 hours ago. Unable to sync and re-sign in to Google Drive.
Anyone can help?
Thanks.
Having the same issue as well 
We just fixed the issue, sorry for the inconvenience! There was a problem preventing OAuth-based packs from refreshing credentials.
I tried the solution you provide and it works now! Thank you @Patrick_Barry for the fix and for letting us know!