You might already be experiencing more issues than usual. We are releasing necessary fixes and updates to all of our games and will be doing so in the next few weeks.
The best thing you can do when you encounter a problem is to log out and log in to the game. If it still doesn't work, you might have to close down your browser or the app and open it back up again.
It is possible that we made a change to the server and the game needs to be refreshed.
We apologize for any inconvenience that this is causing you.
We will be tackling the issues as they come along as soon as we can.
Thank you for understanding.