Ensure you are using the correct email. If you are using the store, remember it often requires a Discord login rather than a standard email/password.
: Use Task Manager to ensure no old Minecraft or launcher instances are running in the background before trying a new login. cmclient login
FPS BOOST. CMCLIENT greatly increases FPS. In most cases, it can triple your FPS compared Vanilla Minecraft. Activate Cosmetics - CMCLIENT - Tebex Ensure you are using the correct email
: Ensure graphics drivers are updated, as certain OpenGL or "Exit Code 1" errors can manifest during the transition from the login screen to the game. cmclient login
Ensure your computer's "Set time automatically" option is enabled in system settings. Network or DNS settings blocking the connection.