[ABKPot]

Give this a try

pawn Code:

CMD:aj(playerid,params[])
{
    new target, reason[100], aname[24], tname[24], str[100];
    if(pdata[playerid][Adminstator] < 2) return SendClientMessage(playerid,Red,"Command not found! Type /cmds");
    if(sscanf(params, "us[100]", target, reason)) return SendClientMessage(playerid,Red,"Eject player from vehicle: /aj <id> <reason>");
    if(!IsPlayerConnected(target)) return SendClientMessage(playerid,Red,"Player is not connected");
    if(!IsPlayerInAnyVehicle(target)) return SendClientMessage(playerid,Red,"Player is not in vehicle");

    GetPlayerName(playerid, aname, sizeof(aname));
    if(isnull(reason)) format(str, sizeof(str), "Admin '%s' (Level %d) ejected you", aname, AdminLevel(playerid));
    else format(str, sizeof(str), "Admin '%s' (Level %d) ejected you: %s", aname, AdminLevel(playerid), reason);
    
        SendClientMessage(target, Red, str);
    RemovePlayerFromVehicle(target);
    return 1;
}