I can't make a purchase in the shop.

First, please completely close the game and then restart it. If the issue persists even after restarting the game, you can try resolving it by completely uninstalling the game and then downloading it again.

If the problem persists or if you need further assistance, please refer to the help resources provided by Google or Apple:

• [Google] If you can't find or use in-app purchases.
• [Apple] Issues related to in-app purchases.