I'm afraid we don't have access to this feature as it's saved on the device itself so we're not able to restore it. This is not a feature that gets backed up so once lost, you'll have to start again ☹
I know it's not ideal but this is the way the feature has been created so that you can collect boosters and be able to use these online.
It looks like you're new here. If you want to get involved, click one of these buttons!