WoW Version
Which version of WoW this bug occurs in: Cata Classic

AddOn skin name
Minimal Archaeology

Describe the bug

3x Skinner/Modules/UIButtons.lua:516: attempt to index field 'obj' (a nil value)
[string "@Skinner/Modules/UIButtons.lua"]:516: in function skinOtherButton' [string "@Skinner/AddonSkins/MinimalArchaeology.lua"]:30: in function <...aceSkinner/AddonSkins/MinimalArchaeology.lua:7> [string "=(tail call)"]: ? [string "=[C]"]: ? [string "=[C]"]: in function Show'
[string "@Skinner/Core/UtilFuncs.lua"]:462: in function checkShown' [string "@Skinner/AddonSkins/MinimalArchaeology.lua"]:47: in function <...aceSkinner/AddonSkins/MinimalArchaeology.lua:5> [string "=(tail call)"]: ? [string "=[C]"]: in function xpcall'
[string "@Skinner/Core/UtilFuncs.lua"]:310: in function <Skinner/Core/UtilFuncs.lua:304>
[string "=(tail call)"]: ?
[string "@Skinner/Core/AddonFrames.lua"]:111: in function `AddonFrames'
[string "@Skinner/Core/Skinner.lua"]:497: in function <Skinner/Core/Skinner.lua:497>

Locals:
self =

{
add2Table = defined @Skinner/Core/SharedFuncs.lua:132
makeIconSquare = defined @Skinner/Core/UtilFuncs.lua:955
blizzLoDFrames = {
}
checkShown = defined @Skinner/Core/UtilFuncs.lua:458
sbClr = {
}
isAddOnLoadOnDemand = defined @Skinner/Core/UtilFuncs.lua:847
tbClr = {
}
changeTandC = defined @Skinner/Core/UtilFuncs.lua:263
Debug3 = defined @Blizzard_UIParent/Cata/UIParent.lua:3182
xMerchant = defined @Skinner/AddonSkins/xMerchant.lua:4
isButton = defined @Skinner/Modules/UIButtons.lua:252
bColour = {
}
rarrow = "→"
larrow = "←"
setupOptions = defined @Skinner/Core/SharedFuncs.lua:141
ADDON_LOADED = defined @Skinner/Core/AddonFrames.lua:177
mmButs = {
}
skinNavBarButton = defined @Skinner/Core/UtilFuncs.lua:1469
addButtonBorder = defined @Blizzard_UIParent/Cata/UIParent.lua:3182
skinTooltip = defined @Skinner/Core/MainFuncs.lua:1183
db = {
}
clrButtonFromBorder = defined @Blizzard_UIParent/Cata/UIParent.lua:3182
SetupDefaults = defined @Skinner/Core/Options.lua:6
SetEnabledState = defined @Ace3/AceAddon-3.0/AceAddon-3.0.lua:420
SetupClassic_NPCFramesOptions = defined @Skinner/ClassicSupport/NPCFrames_Classic.lua:373
isTT = true
Backdrop = {
}
bdTexName = "Solid"
setActiveTab = defined @Skinner/Core/UtilFuncs.lua:1263
isClscERAPTR = false
setupFramesOptions = defined @Skinner/Core/UtilFuncs.lua:1331
AddonFrames = defined @Skinner/Core/AddonFrames.lua:107
hasTextInName = defined @Skinner/Core/UtilFuncs.lua:720
iofDD = {
}
bdbTexName = "RothSquare"
UnregisterAllEvents = defined @Ace3/CallbackHandler-1.0/CallbackHandler-1.0.lua:164
skinGlowBox = defined @Blizzard_UIParent/Cata/UIParent.lua:3182
keepFontStrings = defined @Skinner/Core/UtilFuncs.lua:892
XLoot = defined @Skinner/AddonSkins/XLoot.lua:5
hook = defined @Skinner/Core/UtilFuncs.lua:772
ttDelay = 0.200000
ttHook = {
}
isClsc = true
updateSBTexture = defined @Skinner/Core/UtilFuncs.lua:1492
name = "Skinner"
getPenultimateChild = defined @Skinner/Core/UtilFuncs.lua:698
round2 = defined @Skinner/Core/UtilFuncs.lua:1213
ebRgns = {
}
findFrame2 = defined @Skinner/Core/UtilFuncs.lua:558
Unhook = defined @Ace3/AceHook-3.0/AceHook-3.0.lua:417
Print = defined @Ace3/AceConsole-3.0/AceConsole-3.0.lua:50
skinStatusBar = defined @Skinner/Core/MainFuncs.lua:1020
isClscERA = false
clrBtnBdr = defined @Skinner/Modules/UIButtons.lua:244
L = {
}
Debug = defined @Blizzard_UIParent/Cata/UIParent.lua:3182
BTr = 0.701961
checkLoadable = defined @Skinner/Core/UtilFuncs.lua:442
unwrapTextFromColourCode = defined @Skinner/Core/UtilFuncs.lua:1513
SetupOptions = defined @Skinner/Core/Options.lua:94
HTr = 0.764706
modUIBtns = {
}
SetDefaultModuleLibraries = defined @Ace3/AceAddon-3.0/AceAddon-3.0.lua:363
iofSkinnedPanels = {
}
EnableModule = defined @Ace3/AceAddon-3.0/AceAddon-3.0.lua:328
Iterate