Data from the error I get when I log in. I picked up this addon last night (verified version is 5.4) and am testing it out to see if it works better for me than what I currently use. I continued on to try and make some custom sets (of which more than six is needed!) and got the error again when I started to add items to said custom sets. Pasted below:

---

17x Combuctor_CustomSets-0.4\customsets.lua:692: Usage: GetItemInfo(itemID|"name"|"itemlink")

Combuctor_CustomSets-0.4\customsets.lua:692: in function "UpdateSetContents"
Combuctor_CustomSets-0.4\customsets.lua:588: in function "ScrollBarUpdate"
Combuctor_CustomSets-0.4\customsets.lua:383: in function <Combuctor_CustomSets\customsets.lua:383>

Locals:
self =

{
EnableSet = @Combuctor_CustomSets\customsets.lua:730
CreateFrames = @Combuctor_CustomSets\customsets.lua:176
SearchBagData = @Combuctor_CustomSets\customsets.lua:637
option = {}
MakeItemWide = @Combuctor_CustomSets\customsets.lua:117
options = true
WipeDataz = @Combuctor_CustomSets\customsets.lua:743
UpdateSetContents = @Combuctor_CustomSets\customsets.lua:685
ScrollBarUpdate = @Combuctor_CustomSets\customsets.lua:573
UpdateExample = @Combuctor_CustomSets\customsets.lua:660
OnMouseWheel = @Combuctor_CustomSets\customsets.lua:563
SearchItem = @Combuctor_CustomSets\customsets.lua:702
SetCurrentIcon = @Combuctor_CustomSets\customsets.lua:554
UpdateOptionsFrame = @Combuctor_CustomSets\customsets.lua:591
DisableSet = @Combuctor_CustomSets\customsets.lua:739
ShowSearchHelp = @Combuctor_CustomSets\customsets.lua:137
AddItem = @Combuctor_CustomSets\customsets.lua:716
MakeItemIcon = @Combuctor_CustomSets\customsets.lua:102
MakeEditBox = @Combuctor_CustomSets\customsets.lua:65
Initialize = @Combuctor_CustomSets\customsets.lua:18
CreateOptions = @Combuctor_CustomSets\customsets.lua:41
GetItemId = @Combuctor_CustomSets\customsets.lua:55
DelItem = @Combuctor_CustomSets\customsets.lua:722
UpdateBagData = @Combuctor_CustomSets\customsets.lua:608
}
set = 1
shift = 4.5466642379761
setc = {
1 = 92738
2 = 85973
3 = 86143
4 = 71153
5 = 64402
6 = 37863
7 = 104328
8 = 79249
9 = 103678
10 = 44934
11 = 71634
12 = 68049
13 = 91806
14 = 45992
15 = 88589
16 = 86584
17 = 86593
18 = 86590
19 = 104038
20 = 86589
}
(for index) = 4.5466642379761
(for limit) = 16.546664237976
(for step) = 1
i = 4.5466642379761
id = nil
cSets = {
EnableSet = @Combuctor_CustomSets\customsets.lua:730
CreateFrames = @Combuctor_CustomSets\customsets.lua:176
SearchBagData = @Combuctor_CustomSets\customsets.lua:637
option = {}
MakeItemWide = @Combuctor_CustomSets\customsets.lua:117
options = true
WipeDataz = @Combuctor_CustomSets\customsets.lua:743
UpdateSetContents = @Combuctor_CustomSets\customsets.lua:685
ScrollBarUpdate = @Combuctor_CustomSets\customsets.lua:573
UpdateExample = @Combuctor_CustomSets\customsets.lua:660
OnMouseWheel = @Combuctor_CustomSets\customsets.lua:563
SearchItem = @Combuctor_CustomSets\customsets.lua:702
SetCurrentIcon = @Combuctor_CustomSets\customsets.lua:554
UpdateOptionsFrame = @Combuctor_CustomSets\customsets.lua:591
DisableSet = @Combuctor_CustomSets\customsets.lua:739
ShowSearchHelp = @Combuctor_CustomSets\customsets.lua:137
AddItem = @Combuctor_CustomSets\customsets.lua:716
MakeItemIcon = @Combuctor_CustomSets\customsets.lua:102
MakeEditBox = @Combucto