Plutonium

Hi guys, I could use some help. I have an IW5 server and I have a little problem. The say command does not work in the game console and in iw4m admin. with iw4m admin when I use !say or when I use the iw4m console it tells me that the message is sent but nothing appears in the game. As a result, automatic messages and warn do not work either. The Warn are well taken into account but I do not appear in the chat. I reinstalled everything but same. if someone can help me please.