Kindly follow the below steps in order to restore your subscription:
1) Sign out of Amazon Appstore.
2) Restart your device.
3) Log in to Amazon Appstore using the same Gmail ID used for the subscription. (Please verify your ID from your subscription receipt).
4) Now open the app.
5) You should now be able to access your subscription.
If you face any problem, please reply/email us a copy of your purchase receipt at support@kidloland.com.