You see this screen because you interrupted the application initialization.
If you are sure the application is not initializing correctly, try following solutions.
Slow or unstable network connection to this server could result in long time loading or failing to load.
In such case you are encouraged to wait for the loading to complete rather than keep reloading.
Or you can try changing your network environment to improve your connection.
If you see the message "script error occured while initializing the game".
It means your browser is not compatible with this application.
Try updating your browser or using another browser.
> go back to the game
> clear cache storage
Clear asset and script caches and load resources again.
> clear user settings
You will lose your login state and some settings.