A black screen or WebGL2 error
Update your browser and check whether hardware acceleration is enabled. A passing WebGL2 check only confirms that a graphics context can be created; it does not guarantee enough memory or a stable frame rate.
If the screen remains empty, open the game in a full page. Report the browser version and the action that led to the problem; do not send your complete game files.
The file picker or touch controls do not respond
Open the client as a full page and rotate your device to landscape. Close other memory-heavy tabs. Use the client's own touch controls; the surrounding website does not intercept movements inside the canvas.
A phone browser may decline fullscreen or orientation locking. You can still rotate the device manually and use the full-page view.
Login or multiplayer connection fails
Check service notices and the exact error first. Use your account for this community; upstream accounts are separate. We never forward login details to the upstream service.
A version mismatch, maintenance, an expired session and a network interruption require different fixes. Keep the displayed error when contacting support.
A save is missing or has not synced
Do not clear site data as a first troubleshooting step. Local storage and confirmed cloud storage are different. Keep the last valid save and wait for a successful confirmation before closing a page.
Changing browser profiles, devices, or origins does not automatically transfer local saves. Wait for a successful cloud save confirmation before relying on a cloud copy, and avoid opening the same character in multiple tabs.
Send a useful report
Email mooyuking@gmail.com with the page, device, operating system, browser, approximate time, and reproduction steps. Include a short error message if available.
Never include a password, recovery code, session token, private chat, or complete save file in an initial report.