If you get this error when trying to open an existing design it means there has been an update in the app code, to fix a bug for example, so the version in which you saved your design is outdated. You can solve this by clicking on “Clear”.
To make sure your app version is updated to the latest version, clear your browser cache and reopen the app. You can find the information on the app version by clicking on your login name on the green right top corner of the screen.
