Make sure the Chromebook is on the latest Operating System (OS)
Update Your Chromebook's Operating System

Clear Cache and Cookies from the browser on the Chromebook (Cache and Cookies are data saved in the browser to help open up pages faster)
Clear Cache and Cookies

Delete Unnecessary Extensions
Uninstall An Extension

• Press and Hold the Refresh () and Power Keys simultaneously for 10 seconds
• Let Go
• Press the Power Key

Is searching for words like "apple" or "wagon"  being blocked?

Clear your browser cache and cookies.

Select this link for directions to add printer to your Chromebook

• Check that the Chromebook is on the latest OS (Operating System)
• Reboot the Chromebook

• Turn off your Chromebook
• Let it remain off for at least 10 seconds, this clears the memory
• Restart the Chromebook
• If that fails remove unnecessary extensions which can also cause crashes