how to solved this help

[tiradauno]

//Made by Lunar
//Version 1.6 - by Lunar
//version 1.6.1 - by Rikimaru
//Fixed some errors,which were shown in the map Server - by Rikimaru
//6.1.09
- shop quest_shop -1,501:50
prontera,143,172,5 script Quest Shop 2 899,{
set @i,0;
mes "[shop Quest NPC]";
mes "Which item do you wish to obtain?";
mes "Select only one.";
callshop "quest_shop",1;
npcshopattach "quest_shop";
end;
OnBuyItem:
if(.BuildQuest) {
 for(set .e,0; !compare(getarg(.e+1)+"", "Zeny"); set .e,.e+2) {}
 npcshopadditem "quest_shop",getarg(.e+2),getarg(.e)*compare(getarg(.e+1),"SZeny");
 setarray .Shop[.i],getarg(.e+2);
 set .i,.i+1;
 goto Quest_Setup;
}
if(.Shop[@i]!=@bought_nameid) for(set @i,1; 1; set @i,@i+1) if(.Shop[@i]==@bought_nameid) { set .i,@i; callsub Quest_Setup; }
for(set @i,1; !@e; set @i,@i+1) if(.Shop[@i]==@bought_nameid) { set @e,1; set .i,@i; callsub Quest_Setup; }
mes "[shop Quest NPC]";
mes "I require the following:";
for(set @i,0; !compare(getarg(@i+1),"Zeny"); set @i,@i+2) mes "^FF0000" + ((countitem(getarg(@i))>=getarg(@i+1))? "^00FF00":"") + "" + getarg(@i+1) + " " + getitemname(getarg(@i)) + " [" + countitem(getarg(@i)) + "/" + getarg(@i+1) + "]";
if(getarg(@i)) mes "^FF0000" + ((Zeny>=getarg(@i))? "^00FF00":"") + "" + getarg(@i) + " Zeny";
mes "^000000In exchange, I will give you:^0000FF";
for(set @i,@i+2; getarg(@i+1,0); set @i,@i+2) mes getarg(@i+1) + " " + getitemname(getarg(@i));
switch(select("Exchange:" + (((((getiteminfo(@bought_nameid,5) & 1) || (getiteminfo(@bought_nameid,5) & 256) || (getiteminfo(@bought_nameid,5) & 512)) && @equip==0))? "Preview Item":"") + ":No thanks")) {
 case 1:
  for(set @i,0; !compare(getarg(@i+1),"Zeny"); set @i,@i+2) if(countitem(getarg(@i)) < getarg(@i+1)) {
next;
mes "You have " + countitem(getarg(@i)) + " " + getitemname(getarg(@i)) + ", while I require " + getarg(@i+1) + ".";
mes "Please obtain ^FF0000" + (getarg(@i+1)-countitem(getarg(@i))) + " more " + getitemname(getarg(@i)) + "^000000.";
close;
  }
  if(Zeny < getarg(@i)) {
next;
mes "You do not have enough Zeny.";
mes "Please obtain ^FF0000" + (getarg(@i)-Zeny) + " more Zeny^000000.";
close;
  }
  for(set @i,0; !compare(getarg(@i+1),"Zeny"); set @i,@i+2) delitem getarg(@i),getarg(@i+1);
  set Zeny,Zeny-getarg(@i);
  for(set @i,@i+2; getarg(@i+1,0); set @i,@i+2) getitem getarg(@i),getarg(@i+1);
  if (compare(getarg(@i,0),"announce")) announce strcharinfo(0) + " has just obtained " + getitemname(@bought_nameid) + "!",bc_all;
  close;
 case 2:
  set @bottomview, getlook(3);
  set @topview, getlook(4);
  set @midview, getlook(5);
  addtimer 1000, strnpcinfo(3)+"::On_Leave";
  set @equip,getiteminfo(@bought_nameid, 5);
  set @view, getiteminfo(@bought_nameid, 11);
  if(@equip != -1 && @view > 0) {
if(@equip & 1) atcommand "@changelook 3 " + @view;
if(@equip & 256) atcommand "@changelook 1 " + @view;
if(@equip & 512) atcommand "@changelook 2 " + @view;
  }
  next;
  goto OnBuyItem;
 case 3:
  close;
}
On_Leave:
atcommand "@changelook 1 " + @topview;
atcommand "@changelook 2 " + @midview;
atcommand "@changelook 3 " + @bottomview;
set @equip,0;
set @view,0;
set @topview,0;
set @midview,0;
set @bottomview,0;
end;
OnInit:
npcshopitem "quest_shop",0,0;
set .BuildQuest,1;
set .i,1;
Quest_Setup:
// THEESE ARE JUST A FEW EXAMPLES;WHICH I MADE,YOU HAVE TO PUT IN YOUR OWN ITEM ID'S HERE!
switch(.i) {
 default: set .BuildQuest,0; set .e,0; set .i,0; end;
 case 1: callsub OnBuyItem,7832,5,7078,5,7089,5,100000000,"Zeny",1161,1,"announce";
 case 2: callsub OnBuyItem,7835,5,7082,5,7834,5,100000000,"Zeny",1530,1,"announce";
 case 3: callsub OnBuyItem,7075,5,7086,5,7073,5,100000000,"Zeny",5013,1,"announce";
 case 4: callsub OnBuyItem,7079,5,7090,5,7837,5,100000000,"Zeny",2629,1,"announce";
 case 5: callsub OnBuyItem,7083,5,7836,5,7076,5,100000000,"Zeny",2541,1,"announce";
 case 6: callsub OnBuyItem,7087,5,7074,5,7080,5,100000000,"Zeny",2630,1,"announce";
 case 7: callsub OnBuyItem,7091,5,7831,5,7084,5,100000000,"Zeny",2383,1,"announce";
 case 8: callsub OnBuyItem,7830,5,7077,5,7088,5,100000000,"Zeny",2410,1,"announce";

}
}

Edited July 8, 2012 by tiradauno

[Emistry]

http://rathena.org/board/topic/62452-npc-dynamic-warning-debug/

has been answered several times...