App Store login

You didn't prepare the iPad correctly for a new user.

This is the process which should have been used before you gave the iPad to your Aunt:

What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch - Apple Support

You're welcome. You will know you were successful after you've followed the proper process, and you turn the iPad on, it opens to a Welcome page, which then walks you through the process of setting up the iPad. Your Aunt needs to use her own Apple ID and Password, created a passcode she can't forget (tell her to write it down somewhere safe for easy recall, if ever forgotten).