@afk Error

[PapaZola]

/*==========================================
* @afk by Rad, built on by Tubby 
* same as autotrade, but works without vending
*------------------------------------------*/
ACMD_FUNC(afk)
{
nullpo_retr(-1, sd);
if( map[sd->bl.m].flag.autotrade == battle_config.autotrade_mapflag )
{




if (!message || !*message) {


trade_tradeack(sd,4);
sd->state.autotrade = 1;
if( battle_config.at_timeout )
{
int timeout = atoi(message);
status_change_start(&sd->bl, SC_AUTOTRADE, 10000, 0, 0, 0, 0, ((timeout > 0) ? min(timeout,battle_config.at_timeout) : battle_config.at_timeout) * 60000, 0);
}


clif_authfail_fd(fd, 15);


}




if((strlen(message) < 0)||(strlen(message) > 36)) {
trade_tradeack(sd,4);
sd->state.autotrade = 1;
if( battle_config.at_timeout )
{
int timeout = atoi(message);
status_change_start(&sd->bl, SC_AUTOTRADE, 10000, 0, 0, 0, 0, ((timeout > 0) ? min(timeout,battle_config.at_timeout) : battle_config.at_timeout) * 60000, 0);
}


clif_authfail_fd(fd, 15);


}
trade_tradeack(sd,4);
sd->state.autotrade = 1;
if( battle_config.at_timeout )
{
int timeout = atoi(message);
status_change_start(&sd->bl, SC_AUTOTRADE, 10000, 0, 0, 0, 0, ((timeout > 0) ? min(timeout,battle_config.at_timeout) : battle_config.at_timeout) * 60000, 0);
}


clif_authfail_fd(fd, 15);








} else
clif_displaymessage(fd, "AFK is not allowed on this map.");


return 0;
}

i try using this @afk source

but its seem error show up