A: This error message on the eBay Selling tab is indicating that there’s an issue with your token with eBay. Go to the Setup & Instructions tab, click on “Create Token” and follow the steps. If you have more than one token, be sure to create them one at a time (create and fetch the first token before creating the second one). Don’t delete the current token in your sheet; it will be updated when a new one is created. The transactions you already have in the sheet will remain there.