Nabi 2 - Stuck in kid's mode, no keyboard, spamming "Google has stopped"

Hi earlier my son was on the nabi 2 and randomly it started spamming "Unfortunately google search has stopped" every 3 - 4 seconds, which affects the keyboard I suppose, now I'm just stuck on the "Enter the password" but no keyboard to do so? Please help me I'm not sure how to run these programs to fix it or how to even start.