Thank you for using Apple Support Communities. It seems like you are trying to connect your Apple TV to a school's Wi-Fi network and it is asking you to create a profile. I would recommend you read these articles and use them to help troubleshoot the issue.
Apple TV might be able to join some education or business networks that use a profile. Ask the network's system administrator for more information.
Get help with Wi-Fi networks on your Apple TV
Use configuration profiles to use your Apple TV on a protected WiFi network, or to manage your Apple TV with Mobile Device Management (MDM).
This article is intended for enterprise and education system administrators.
Use Apple Configurator to connect to an Apple TV with USB
Take care.