[AdHaM612]

You have just formatted a string, without using it.
Change it to:

pawn Код:

COMMAND:afk(playerid,params[])
{
    new string[125];
    format(string, sizeof(string),"{2641FEFF} %s is away from keyboard!", PlayerName(playerid));
    SendClientMessageToAll(-1,string); // The message will be sent to all the players
    return 1;
}