I am also having this issue. I can log into the Launchbox Games Database just fine in a browser, but when I log into the database in the app. It tells me "Error: connection to the Launchbox Games Database has expired. Please sign in again." It shows an exclamation mark in a yellow circle at the top of the app. I can click on it, re-enter my credentials, but it still does not log in. Therefore, I cannot sync my collection.