WowAce

got this error:

1x Broker_Portals/portals.lua:834: table index is nil
[Broker_Portals/portals.lua]:834: in function <Broker_Portals/portals.lua:782>
[Broker_Portals/portals.lua]:901: in function <Broker_Portals/portals.lua:843>
[Broker_Portals/portals.lua]:1194: in function <Broker_Portals/portals.lua:1138>
[tail call]: ?

Locals:
itemType = "items"
itemList = <table> {
1 = 40585
2 = 40586
3 = 44934
4 = 44935
5 = 45688
6 = 45689
7 = 45690
8 = 45691
9 = 48954
10 = 48955
11 = 48956
12 = 48957
13 = 51557
14 = 51558
15 = 51559
16 = 51560
17 = 139599
18 = 21711
19 = 37863
20 = 17690
21 = 17691
22 = 17900
23 = 17901
24 = 17902
25 = 17903
26 = 17904
27 = 17905
28 = 17906
29 = 17907
30 = 17908
31 = 17909
32 = 22631
33 = 32757
34 = 35230
35 = 43824
36 = 46874
37 = 50287
38 = 52251
39 = 58487
40 = 61379
41 = 63206
42 = 63207
43 = 63352
44 = 63353
45 = 63378
46 = 63379
47 = 64457
48 = 65274
49 = 65360
50 = 95050
51 = 95051
52 = 95567
53 = 95568
54 = 87548
55 = 93672
56 = 103678
57 = 110560
58 = 118662
59 = 118663
60 = 118907
61 = 128353
62 = 128502
63 = 128503
64 = 136849
65 = 139590
66 = 140192
67 = 140324
68 = 142469
69 = 144391
70 = 144392
71 = 151016
72 = 166559
73 = 230850
}
menuCategory = "mainitems"
itemsGenerated = 0
i = 0
(for index) = 61
(for limit) = 73
(for step) = 1
i = 61
itemName = nil
_ = nil
itemQuality = nil
_ = nil
_ = nil
_ = nil
_ = nil
_ = nil
_ = nil
itemIcon = nil
itemSpellDescription = nil
(*temporary) = <table> {
}
(*temporary) = <table> {
secure = <table> {
}
itemID = 128353
itemType = "items"
}
(*temporary) = <table> {
type = "item"
}
(*temporary) = "table index is nil"
methods = <table> {
mainitems = <table> {
}
}