The Community in more languages
Now the forum welcomes more languages.
You'll see a green translate button in comments and discussions to turn them into English
Hi and Welcome to the King Community
In the case of Phone, your collected booster is stored in phone memory. This stored booster can not be synced with the server, because the game studio still does not have this process.You will not be able to transfer the boosters to another device, you will lose the complete booster for app uninstalling or crashing.
However, Please check HERE.
If you play on mobile, then please email Player Support directly from the game.
Go to the game's Start Menu, then Settings - Help Center - Purchases & Gold Bars - Contact us and send them an email.