If you're having trouble accessing your account on your Nabi 2 tablet, you can try the following steps:
# Make sure your device is connected to the internet.
# Open the Nabi 2 Settings app from the home screen.
# Scroll down and select "Accounts".
# Tap on the account you want to access.
# Enter your login information, such as your username and password, and then tap "Sign in".
If you're still having trouble accessing your account, you can try resetting your Nabi 2 tablet to its factory settings. However, be aware that doing so will erase all data and personal settings on your device. You can find instructions on how to reset your Nabi 2 tablet on the manufacturer's website or by contacting their customer support team.