It happens sometimes that the chat stops responding. Until now I’m not been succesful identifing/solving the bug. So I implemented a “working chat check” that restarts the chat if it’s not working. I’m looking to solve it or to find a more affidable chat system. In the meantime, if the chat is not working for you, after a minute reload the game page and it should work angain.
I know it’s not the best solution… but at the moment I have no other way.