My graddaughter has lost all her saved desktop icons, and when she tries to get one back, it says it is in "Mommy mode"

How do I switch from Kidz Mode to Mommy Mode, and vice versa?
To switch to Mommy Mode, simply tap the Menu Key, select Mommy Mode, and enter the password to exit Kidz Mode. To switch back to Kidz Mode, simply tap the Applications View, and then tap the Kidz Mode Icon.
also for customer support phone number is: 1-855-ASK-NABI

There's a Nabi app that allows the adult to reinstate the child screen; the "Mommy mode" grants access to the entire tablet functions, including Settings, functioning like any tablet that is not intended for children. When the Nabi software is activated it conceals the "Mommy mode" of the tablet, preventing children from getting into apps or settings on the tablet that should not be touched or messed with by kids. Here is the link to the Nabi quick start guide for specific details: https://www.nabitablet.com/support/products/nabi2/quick-start-guide.