[James_Alex]

cuz you forgot the return 1;
try

pawn Код:

if(strcmp(cmdtext, "/bk", true) == 0)
    {
    for (new i = 0; i < MAX_PLAYERS; i++)
    {
    if(GetPlayerTeam(i) == TEAM_COP)
    {
    new name[255];
    GetPlayerName(playerid, name, 255);
    new string[256];
    format(string,256,"Officier %s need Backup, Now! He is Marked Purple on the map!",name);
    SendClientMessageToAll(COLOR_BLUE,string);
    SetPlayerColor(playerid,0x800080AA);
    SetTimer("ChangeColor",30000,0);
    }
    }
    return 1;
    }