@Cleer

I've checked your account and found a faulty game session that the game tried to reconnect to repeatedly, That should now be resolved.

As for the browser version: That might occur if for example, your browser has many or memeory-demanded other tabs opened. Then the total memory available that the browser can access to run the game might not be enough. This can be worked around by either closing them or opening a new browser instance for the game.