In order to reset your parental code, you will need to uninstall and reinstall the PNP mobile app.
We didn't want to make it too easy for kids to figure out how to reset it. Once you log back in you will still have access to your account and everything you've made, but you will be asked to set up a new parental code.
For Android users, please find the PNP mobile app in your Settings > App menu, and clear the app data before uninstalling.