1) Delete the screenshot. It's not a good idea to post your email in a forum. In the future you can use an app like Skitch to obscure private information in screenshots. It's what most forum members use.
2) Don't use that setup. It's for general IMAP accounts. There is an option just for Google's Gmail accounts. It works better, and requires nothing but your email address and password to setup.
Unless you've enabled Google's 2-step authentication feature. In which case you'll have to generate and use an app specific password from your Google security settings, online on a computer. If you need help with that, let me know.
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