Google Sheets Add-On
If you are signed into multiple Google accounts and is currently using a non-default account, you will see this error in the Google Sheets Add-On even if you have authorized it. This is a known account management bug (see Google's bug tracker here). To fix this error, please log out from all of your Google accounts. Sign in back again with one account connected to LiveFlow. Alternatively, log in to your Google Account in an Incognito window and connect the LiveFlow Add-On.