This may be the same error. Unsure. WowInterface.com is much politer about error code in comments, having a way to make it a scrollable window inside the comment so it doesn't wall-of-text things... KEEPING my pile of addons in the list, not all of which are updated yet.

Date: 2016-07-20 21:45:23
ID: 8
Error occured in: Global
Count: 1
Message: ...ce\AddOns\Blizzard_Collections\Blizzard_Wardrobe.lua line 2242:
Usage: GetSpecializationInfo(specIndex[, isInspect[, isPet[, inspectTarget[, sex]]]])
Debug:
[C]: GetSpecializationInfo()
...ce\AddOns\Blizzard_Collections\Blizzard_Wardrobe.lua:2242: initFunction()
..\FrameXML\UIDropDownMenu.lua:69: UIDropDownMenu_Initialize()
...ce\AddOns\Blizzard_Collections\Blizzard_Wardrobe.lua:2214:
...ce\AddOns\Blizzard_Collections\Blizzard_Wardrobe.lua:2213
[C]: LoadAddOn()
..\FrameXML\UIParent.lua:391: UIParentLoadAddOn()
MountFarmHelper\MountFarmHelper.lua:77:
MountFarmHelper\MountFarmHelper.lua:21
(tail call): ?
[C]: ?
[string "safecall Dispatcher[1]"]:9:
[string "safecall Dispatcher[1]"]:5
(tail call): ?
...\AddOns\DataStore\libs\AceAddon-3.0\AceAddon-3.0.lua:529: InitializeAddon()
...\AddOns\DataStore\libs\AceAddon-3.0\AceAddon-3.0.lua:644:
...\AddOns\DataStore\libs\AceAddon-3.0\AceAddon-3.0.lua:636
Locals:
(*temporary) = nil

AddOns:
Swatter, v5.21f.5579 (SanctimoniousSwamprat)
WowheadLooter, v60014
Archy, v6.2.3.2
AutoRepair, v
Awwwww, v2.0.1
Babylonian, v5.1.DEV.332(/embedded)
BadBoy, v13.021
BattlePetCount, v1.8.9
BOPCraftConfirm, v1.2.2
CloakHelmToggle, v1.0.1
Configator, v5.1.DEV.376(/embedded)
DataStore, vr56
DataStoreAchievements, vr42
DataStoreAgenda, vr23
DataStoreAuctions, v6.0.001
DataStoreContainers, vr52
DataStoreGarrisons, vr16
DataStoreInventory, vr44
DataStoreMails, vr45
DataStoreQuests, vr36
DataStoreSpells, vr27
DragEmAll, v1.0.6
Dresser, v7.0.0.160625
ExaltedWithTheFloor, v1.0
Exonumist, v6.1.0.16
FarmIt2, v
FishingBuddy, v1.6c
FlightMapEnhanced, v1.7.8
Gatherer, v5.0.0
GemHelper, v6.0.6
GuildRosterButtons, v4.0
IgnoreMore, v1.1.1-40300
InFlightLoad, v6.2.001
KeepingTabs, v1.5
LagBar, v3.3
LightHeaded, vwowi:revision
Linkerize, v008
LootCountDropCount, v
MasterPlanA, vA
MetaMap, v6.2.3.0
MicroMenu, v1.2.2
MobKillCount, v1.1
MountFarmHelper, v2.0
Pawn, v2.0.1
PetTracker, v7.0.0
PetTrackerSwitcher, v
Postal, vv3.5.8
QuestPlates, v0.8
QuickQuestItem, v3.0
RangeDisplay, vv4.3.2
RaresTip, vr10
SimpleDing, v0.8
SimpleGold, v5.5.0
Skada, vr626
SkadaScroll, v1.5.2
SlideBar, v5.21f.5579 (SanctimoniousSwamprat)
SwindlerPreventer, v5.0.1 (15799) BETA
TargetRole, v1.2.8
TinyPad, v2.1.1
TomTom, vv70000-1.0.0
WhoFramedWatcherWabbit, v2.2
ZoneAchievementTracker, v6.1.0.15
BlizRuntimeLib_enUS v7.0.3.70000 <none>
(ck=5ff)

I'm getting the same error as Croana.

Hiya, I get the following error with the new patch:

6x ...ceBlizzard_Collections\Blizzard_Wardrobe.lua:2243: bad argument #2 to 'format' (string expected, got nil)
[C]: in function `format'
...ceBlizzard_Collections\Blizzard_Wardrobe.lua:2243: in function `initFunction'
FrameXML\UIDropDownMenu.lua:69: in function `UIDropDownMenu_Initialize'
...ceBlizzard_Collections\Blizzard_Wardrobe.lua:2214: in function <...ceBlizzard_Collections\Blizzard_Wardrobe.lua:2213>
[C]: in function `LoadAddOn'
FrameXML\UIParent.lua:391: in function `UIParentLoadAddOn'
MountFarmHelper\MountFarmHelper-1.4.3.lua:77: in function <MountFarmHelper\MountFarmHelper.lua:21>
(tail call): ?
[C]: ?
[string "safecall Dispatcher[1]"]:9: in function <[string "safecall Dispatcher[1]"]:5>
(tail call): ?
Ace3\AceAddon-3.0\AceAddon-3.0-12.lua:529: in function `InitializeAddon'
Ace3\AceAddon-3.0\AceAddon-3.0-12.lua:644: in function <Ace3\AceAddon-3.0\AceAddon-3.0.lua:636>

Locals:
(*temporary) = "(%s)"
(*temporary) = nil
(*temporary) = "string expected, got nil"

Also this error:

12x MountFarmHelper\MountFarmHelper-1.4.3.lua:197: attempt to call field 'GetMountInfo' (a nil value)
MountFarmHelper\MountFarmHelper-1.4.3.lua:197: in function `GetPlayerItems'
MountFarmHelper\MountFarmHelper-1.4.3.lua:212: in function `BuildTooltipData'
MountFarmHelper\MountFarmHelper-1.4.3.lua:375: in function `UpdateTooltipData'
MountFarmHelper\MountFarmHelper-1.4.3.lua:157: in function `UpdateTooltip'
MountFarmHelper\MountFarmHelper-1.4.3.lua:40: in function `OnEnter'
Bazooka\Bazooka-v2.6.1.lua:1576: in function `showTip'
Bazooka\Bazooka-v2.6.1.lua:1381: in function <Bazooka\Bazooka.lua:1372>

Locals:
self = <table> {
 SetDefaultModuleLibraries = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:398
 Enable = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:325
 UnregisterAllEvents = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:200
 EnableModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:363
 modules = <table> {
 }
 GetModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:241
 IterateEmbeds = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:473
 defaultModuleLibraries = <table> {
 }
 TimeLeft = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:170
 ScheduleRepeatingTimer = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:127
 CancelAllTimers = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:158
 BuildTooltipData = <function> defined @MountFarmHelper\MountFarmHelper.lua:209
 SetDefaultModulePrototype = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:440
 GetOptions = <function> defined @MountFarmHelper\Config.lua:5
 tooltip = <unnamed> {
 }
 name = "MountFarmHelper"
 BuildAltCraftList = <function> defined @MountFarmHelper\MountFarmHelper.lua:318
 IsEnabled = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:482
 orderedModules = <table> {
 }
 ScheduleTimer = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:92
 DisableModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:381
 trackNpc = <table> {
 }
 icon = <table> {
 }
 ldb = <table> {
 }
 OpenMountJournal = <function> defined @MountFarmHelper\MountFarmHelper.lua:483
 RegisterMessage = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:116
 UnregisterMessage = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:179
 GetNpcName = <function> defined @MountFarmHelper\MountFarmHelper.lua:106
 OnGameTooltipCleared = <function> defined @MountFarmHelper\MountFarmHelper.lua:495
 baseName = "MountFarmHelper"
 OnGameTooltipSetItem = <function> defined @MountFarmHelper\MountFarmHelper.lua:498
 GetItemSourceInfo = <function> defined @MountFarmHelper\MountFarmHelper.lua:169
 IsModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:499
 db = <table> {
 }
 SendMessage = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:85
 scanTooltip = MFH_SCAN_TOOLTIP {
 }
 Disable = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:345
 SetEnabledState = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:455
 UpdateTooltip = <function> defined @MountFarmHelper\MountFarmHelper.lua:149
 enabledState = true
 defaultModuleState = true
 RegisterEvent = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:116
 UnregisterAllMessages = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:200
 UpdateTooltipData = <function> defined @MountFarmHelper\MountFarmHelper.lua:372
 OnInitialize = <function> defined @MountFarmHelper\MountFarmHelper.lua:21
 CancelTimer = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:145
 IterateModules = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:468
 NewModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:266
 SetDefaultModuleState = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:418
 GetName = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:310
 OnCombatEvent = <function> defined @MountFarmHelper\MountFarmHelper.lua:130
 UnregisterEvent = <function> defined @Ace3\CallbackHa

When I try to use this Addon from the minimap circle, it overlaps with something when the window pops up and I cant figure out what it is, I have disabled aps to see and nothing works. Anyone else have this problem or have a fix to this?

I have the icon on  a mini map, but it seems not working for me... Where can i Find all this that screenshots have?? a help please!!!

Really like this addon. I just wish it had a small, more manageable interface; perhaps a tabbed square frame with arrows (< >) for easier navigation, instead of a very long list.

I found this on WoWinterface.com, which pointed to here so I came here to check which version is current. 

Could you please try to remember to update it on WoWInterface.com?  My machine *really* doesn't get along with all the animated video and ads on here, and the browser frequently crashes. Yes, I have an old machine, I realize I'm an outlier, it would be very much appreciated. 

Trying the addon today. Just got my 100 mounts, and now I'm stoked to push for more.

Have you tried inistalling AdBlock?

Doesn't list the Reins of the Azure Drake nor the Reins of the Blue Drake which drop from The Eye of Eternity raid.

Is there a way to move the Minimap button beyond the defined default minimap border? Move Anything isn't displaying any frame stack info on the button.

http://puu.sh/gSVJj/67adfb5bea.png

Literally every change log

It doesn't recognise when you have done hc sethekk halls or hc magister's terrace they still show after completing them.

http://puu.sh/gEwM3/3e2a218f71.png

You need to find a way to take full cursor control in your overlay

I am totally with him on the pet thing i would love it thanks for your work.

Love the addon! Think you could make something similar for raid/boss pets and include an option for it to refresh each week (for farmers)? You could also have it put the battle pet name in red for 0 collected and green for already owning one, for people who don't farm but are just wanting to complete collection. Add an option to toggle showing already owned pets, and viola I think it'd be stellar. Wish I knew how to make addons.. lol

You no longer get the list on your lbd display since last patch.