Go to your Google Account settings
Click Security on the left sidebar.
Scroll down to Your connections to third-party apps & services, click See all connections.
Find the Sheetgo app. If there are two of them, repeat steps 5 and 6 for both of them.
Click the Sheetgo app.
At the bottom of the page, click Delete all connections you have with Sheetgo.
Go to Sheetgo.
Dismiss the Google Account Authorization pop-up.
Click the profile picture at the top right.
Select Manage Account.
Under Services and account, open the menu for the Main provider and select Disconnect.
Click Add account for Google Account.
Re-authorize Sheetgo selecting all options.