If you're seeing this error, it means that the game is unable to reach its servers and start.
Please check the following steps:
1. Wait for 5–7 minutes and try again. Sometimes we put servers under maintenance, but usually it should not take long.
2. Connect to a different network / use mobile data.
3. Enable or disable VPN.
4. Clear game's cache (Android) or reinstall it (iOS, Windows).
If none of these help, please contact us at support@cm.games or use the contact form on any FAQ page.