Pinterest Reverse Image Search Plugin login failed with the message: "Your account is connected to Google - use the Google button to log in."

Before logging into the Pinterest Reverse Image Search Plugin, you need to confirm the email address and password associated with your Pinterest account.

If you usually log into Pinterest via your browser using third-party services such as Google or Facebook instead of directly entering an email and password, this might be the reason for the login failure.

Solution: Visit the Pinterest website using your browser and log into your account. In your account settings, create or update your password. This will allow you to log in to the Reverse Image Search Plugin using your email and the newly set password.