Charchar88 and Lukepook are both having problems with chat. They are in the US. Charchar says that they can open the chat box and type a message, but they cannot send it. Lukepook isn't even able to open the chat box. Perhaps you can fix this problem?
I am not an Admin, however if this is only happening to a couple of players, that suggests that the cause is not a Sandlot issue. It is likely a client-side issue that will need to be solved by their parent. Both players' parent is Krakhis. I will send Krakhis a conversation about this issue.