In order to connect an email account from Google, you may have to edit your security settings in your Google account
To get it to connect, you will need to create a special password just to be used for LK, see below:
1. Create an app-specific Password in your Google account: see - https://support.google.com/accounts/answer/185833?hl=en
2. Enter this password in LK in place on your normal email password