OAuth refresh token expired for Google on your site - Tens of emails every day

[samv]

Hi 

I have set up a project for Oauth for some of my moodle sites- we use the Google Doc converter. For the past 2 weeks, I have been getting multiple emails every day with this error. There is no error on any of the Moodle sites so it is a Google error but what could it be? Moodle is showing as connected to the service for all my sites. 

OAuth refresh token expired for Google on your site.

Thanks

[asrarakhair]

Hi, 
You may need to set and request the to re-create/refresh your access token. Since access token usually expired in a few second.

Thank You

[samv]

Not sure where I would do this, could you help?  I am getting so many emails for all my oauth projects - some I had even deleted.