Thanks Google:
Follow these steps to fully flush the cached credentials and reset your counter: [1, 2]
1. Purge the Token from macOS Keychain
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Quit GarageSale completely if it is currently open.
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Open the Keychain Access app on your Mac (press
Cmd + Space, type “Keychain Access”, and press Enter). -
Type GarageSale eBay Account into the search bar in the top-right corner.
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Note: If nothing appears, search for ebay token instead.
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Right-click on the token file and select Delete. [1]