ABC shows 403 1 1028 error if a user tries to play ABC anywhere which is in restricted zones of ABC. It means that ABC is not available to watch in your area.
Canadian users can easily get rid of this error by switching their locations to the USA using ExpressVPN.  If you are connected to your VPN and you still get the ABC Error 403 1 1028 message, you may need to try a different US server.