IndexError

Level 1 of the Dungeon
(15, 1, D:1)
  6 stones
(25, -4, D:1)
  a +0 whip
(27, 18, D:1)
  6 stones
(34, 14, D:1)
  5 stones
(35, -6, D:1)
  a +0 leather armour
(38, -3, D:1)
  a +2 vampiric short sword {!w}
  3 stones
(43, 0, D:1)
  6 poisoned darts
(48, 1, D:1)
  a +0 leather armour
(48, 10, D:1)
  a +0 ring mail
(48, 24, D:1)
  a +0 leather armour
(49, 2, D:1)
  a +0 ring mail
(49, 20, D:1)
  a +0 short sword
  3 stones

Level 2 of the Dungeon
[Shop] Ydweos's Distillery
  a potion of curing (33 gold)
  2 potions of brilliance (88 gold)
  a potion of curing (33 gold)
  a potion of attraction (33 gold)
  a potion of attraction (33 gold)
  a potion of magic (88 gold)
  a potion of haste (110 gold)
  a potion of magic (88 gold)
[Shop] Bufezufi's Weapon Shoppe
  a +0 short sword (39 gold)
  a +0 mace (39 gold)
  6 boomerangs (156 gold)
  a +0 short sword (39 gold)
  a +0 mace (39 gold)
  a +0 quarterstaff (52 gold)
  a +1 antimagic whip (188 gold)
(0, 0, D:2)
  a +0 quarterstaff
(2, 6, D:2)
  2 stones
(4, -5, D:2)
  a +0 club
(13, -27, D:2)
  a +0 halberd
(13, -25, D:2)
  a +0 club
(13, -24, D:2)
  a +0 club
(16, 11, D:2)
  6 stones
(24, 1, D:2)
  a +0 dagger
  4 stones
(26, 8, D:2)
  a +0 dagger
(30, -2, D:2)
  5 stones
(32, -31, D:2)
  5 stones
(33, 6, D:2)
  3 stones
(34, 6, D:2)
  a +0 long sword
(35, -30, D:2)
  a +0 club
(36, -5, D:2)
  a +0 dagger
(40, 11, D:2)
  a +0 dagger
(44, -30, D:2)
  a +1 vampiric short sword {!w}
  a +0 scale mail

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 long sword
(2, 33, D:3)
  13 gold pieces
(9, 20, D:3)
  a +0 whip
  a kobold corpse
(11, -4, D:3)
  a hobgoblin corpse
(50, 6, D:3)
  10 gold pieces

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 dagger
  5 stones
  a kobold corpse
(2, -5, D:4)
  a quokka corpse

Level 5 of the Dungeon
(0, 0, D:5)
  a +0 club
  a +0 leather armour
  an orc corpse
(3, 6, D:5)
  a +0 spear