Thanks for reaching out. A few questions: what type of Chromecast do you have? What's the exact message are you getting? Have you tried any troubleshooting steps to fix this? Also, what country are you located in?
We haven't heard from you in a while so we'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the Community.