Addon error message

I get messages about things being registered twice ... how do I fix this?

======================
Date: 2007-10-07 06:46:20
ID: 51
Error occured in: Global
Count: 1
Message: ...\AddOns\Cartographer_Battlegrounds\Battlegrounds.lua line 11:
Bad argument #2 to `AddTranslations'. "enUS" registered twice.
Debug:
[C]: ?
[C]: ?
...grapher\libs\LibRockLocale-1.0\LibRockLocale-1.0.lua:238:
AddTranslations()
...\AddOns\Cartographer_Battlegrounds\Battlegrounds.lua:11: in main
chunk
[C]: ?
[C]: pcall()
Cartographer\Cartographer.lua:958: LoadLoadOnDemandModules()
Cartographer\Cartographer.lua:466:
Cartographer\Cartographer.lua:312
[C]: ?
...AddOns\Cartographer\libs\LibRock-1.0\LibRock-1.0.lua:2401:
...AddOns\Cartographer\libs\LibRock-1.0\LibRock-1.0.lua:2376
...AddOns\Cartographer\libs\LibRock-1.0\LibRock-1.0.lua:2450:
...AddOns\Cartographer\libs\LibRock-1.0\LibRock-1.0.lua:2443
...AddOns\Cartographer\libs\LibRock-1.0\LibRock-1.0.lua:2523:
...AddOns\Cartographer\libs\LibRock-1.0\LibRock-1.0.lua:2486
...AddOns\Cartographer\libs\LibRock-1.0\LibRock-1.0.lua:2644:
...AddOns\Cartographer\libs\LibRock-1.0\LibRock-1.0.lua:2639
[C]: LoadAddOn()
[string " local loadType = Stubby.GetConfig("Inform..."]:3: in
main chunk
[C]: RunScript()
Stubby\Stubby.lua:902:
Stubby\Stubby.lua:895
Stubby\Stubby.lua:915: f()
Stubby\Stubby.lua:723: EventWatcher()
Stubby\Stubby.lua:946: Events()
[string "*:OnEvent"]:1:
[string "*:OnEvent"]:1
AddOns:
ArkInventory, v2.10c
aucadvanced, v5.0.PRE.2109
aucstatpurchased, v5.0.PRE.2109
aucstatsimple, v5.0.PRE.2109
aucstatstddev, v5.0.PRE.2109
aucutilbasicfilter, v5.0.PRE.2109
BonusScanner, vv2.4
Cartographer, vr49736
CartographerBattlegrounds, v2.0
CartographerMailboxes, v1.0
CartographerQuestObjectives, v0.9b
CartographerTreasure, v1.0
CharactersViewer, v288
Coords
enchantrix, v5.0.PRE.2109
enchantrixbarker, v3.9.0.1560 (Wallaby)
EnhTooltip, v5.0.PRE.2109
EquipCompare, v2.10
FishingBuddy, v0.9.3c
FBOutfitDisplayFrame, v0.9.3a
FBTrackingFrame, v0.9.3a
FBInfoBar, v0.9.3a
FBMergeDatabase, v0.9.3a
Informant, v5.0.PRE.2109
Outfitter, v3.6.0
QuestHistory, v2.1.2
RedRange
CharacterProfiler, v2.1.1
Stubby, v1917
swatter, v5.0.PRE.2109
InfoBar, v110