[junkbuster]

I do not see your error, but try this.

pawn Code:

CMD:kick(playerid,params[])
{
    new id,n[MAX_PLAYER_NAME],reason[35], on[MAX_PLAYER_NAME], string[128], string2[128];
    if(PlayerInfo[playerid][pAdminNivel] == 0) return SendClientMessage(playerid,COLOR_RED,"  You are not allowed to use this command!");
    if(sscanf(params,"uz",id, reason)) return SendClientMessage(playerid,COLOR_RED,"Usage:/kick [ID] [reason]");
    if(playerid == INVALID_PLAYER_ID) return SendClientMessage(playerid,COLOR_RED,"System: Invalid ID");
    if(id == INVALID_PLAYER_ID) return SendClientMessage(playerid, COLOR_RED, "System: Invalid ID");
    if(playerid == id) return SendClientMessage(playerid,COLOR_RED, "You cannot kick yourself");
    else
    {
        GetPlayerName(playerid,n,sizeof(n));
        GetPlayerName(id,on,sizeof(on));
        format(string,sizeof(string),"You have been kicked by Admin: %s for %s",n,reason);
        SendClientMessage(playerid,COLOR_RED,string);
        format(string2, sizeof(string), "Admin Action: %s has kicked %s because: %s",n,on,reason);
        SendClientMessageToAll(COLOR_RED,string2);
        Kick(id);
    }
    return 1;
}

Only Compiled, no tested.