If you're finding errors with the functionality of the site, this may be due to filters on your device put in place by your school's IT department. You may be able to whitelist the site yourself, or you may need to contact your school's IT department to complete this.
To allow full functionality at MathGames you must whitelist *.mathgames.com
Here are whitelisting instructions for major companies:
General Audit Tool: https://gatlabs.com/automatically-block-and-approve-url-sets/
If you don't see your software program listed, please search for how to whitelist with your program's name.
Adblocker may also disrupt the functionality of the site. Here's how to disable it: https://teachmehelp.zendesk.com/hc/en-us/articles/360054294274-How-do-I-turn-off-Adblocker-