my scores are gone

Make sure that the email used when signing in through the Garmin Connect website matches the email you are signed in with through the Garmin Golf app. 

On the connect.garmin.com > the dashboard on the left side of the web page > Drop the "Golf" section down > Tap "Scorecards" > The same round scorecards you are seeing in the Garmin Golf app should be showing on the Garmin Connect website. The home page on the Garmin Connect site was changed through an update to both the site and the Connect mobile app where a new configuration is designed, so golf information is not going to display on the opening page of the Connect site any longer, and now is accessible through the dashboard on the left side of the page.