WowAce

For some reason, it makes it impossible for a non-max lvl character to do pet battles. In the battle, there's no buttons at all and you're unable to do anything. You can't  even leave. In order to quit you have to log out completely. For my 110 char, this is not an issue. I've experienced this with another chat addon as well (PRAT). 

Date: 2018-07-21 08:40:00
ID: 13
Error occured in: Global
Count: 1
Message: ..\AddOns\Chatter\Modules\EditBox.lua line 448:
attempt to concatenate local 'chan' (a nil value)
Debug:
Chatter\Modules\EditBox.lua:448:
Chatter\Modules\EditBox.lua:437
(tail call): ?
..\FrameXML\ChatFrame.lua:3981: ChatEdit_ResetChatType()
..\FrameXML\ChatFrame.lua:4054:
..\FrameXML\ChatFrame.lua:4038
..\FrameXML\ChatFrame.lua:4064:
..\FrameXML\ChatFrame.lua:4059
[C]: ChatEdit_DeactivateChat()
..\FrameXML\FloatingChatFrame.lua:806: FCF_OpenTemporaryWindow()
Chatter\Chatter.lua:184:
Chatter\Chatter.lua:183
(tail call): ?
...AddOns\Blizzard_PetBattleUI\Blizzard_PetBattleUI.lua:146: PetBattleFrame_Display()
...AddOns\Blizzard_PetBattleUI\Blizzard_PetBattleUI.lua:94:
...AddOns\Blizzard_PetBattleUI\Blizzard_PetBattleUI.lua:91
Locals:
self = <table> {
ChatEdit_SetLastActiveWindow = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:399
SetDefaultModuleLibraries = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:398
Enable = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:325
NewModule = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:266
FCF_Tab_OnClick = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:361
EnableModule = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:363
modules = <table> {
}
GetModule = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:241
IterateEmbeds = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:473
SecureHookScript = <function> defined @Interface\AddOns\Chatter\Libs\AceHook-3.0\AceHook-3.0.lua:410
defaultModuleLibraries = <table> {
}
RawHookScript = <function> defined @Interface\AddOns\Chatter\Libs\AceHook-3.0\AceHook-3.0.lua:395
LibSharedMedia_Registered = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:237
GetName = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:310
GetOptions = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:415
SetAttach = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:490
name = "Chatter_Edit Box Polish"
IsEnabled = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:482
orderedModules = <table> {
}
Decorate = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:282
DisableModule = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:381
baseName = "Chatter"
SetBackdrop = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:419
HookScript = <function> defined @Interface\AddOns\Chatter\Libs\AceHook-3.0\AceHook-3.0.lua:366
frames = <table> {
}
SecureHook = <function> defined @Interface\AddOns\Chatter\Libs\AceHook-3.0\AceHook-3.0.lua:336
IsHooked = <function> defined @Interface\AddOns\Chatter\Libs\AceHook-3.0\AceHook-3.0.lua:493
UnhookAll = <function> defined @Interface\AddOns\Chatter\Libs\AceHook-3.0\AceHook-3.0.lua:477
SetBorderByChannel = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:437
IsModule = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:248
db = <table> {
}
SetDefaultModuleState = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:418
ChatEdit_DeactivateChat = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:408
OnDisable = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:368
SetEnabledState = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:455
Hook = <function> defined @Interface\AddOns\Chatter\Libs\AceHook-3.0\AceHook-3.0.lua:274
enabledState = true
OnEnable = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:316
OnInitialize = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:256
Disable = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:345
hooks = <table> {
}
SetDefaultModulePrototype = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:440
UpdateHeight = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:605
IterateModules = <function> defined @Interface\AddOns\CanIMogIt\Libs\AceAddon-3.0\AceAddon-3.0.lua:468
Info = <function> defined @Interface\AddOns\Chatter\Modules\EditBox.lua:601
RawHook = <function> defined @Interface\AddOns\Chatter\Libs\AceHook-3.0\AceHook-3.0.lua:313
Unhook = <function> defined @Interface\AddOns\Chatter\Libs\AceHook-3.0\AceHook-3.0.lua:418
moduleName = "Edit Box Polish"
defaultModuleState = true
modName = "Edit Box Polish"
}
(for generator) = <function> defined =[C]:-1
(for state) = <table> {
1 = <unnamed> {
}
2 = <unnamed> {
}
3 = <unnamed> {
}
4 = <unna
AddOns:
Swatter, v7.7.6000 (SwimmingSeadragon)
AucAdvanced, v7.7.6000 (SwimmingSeadragon)
AucFilterBasic, v7.7.6000 (SwimmingSeadragon)
AucStatHistogram, v7.7.6000 (SwimmingSeadragon)
AucStatiLevel, v7.7.6000 (SwimmingSeadragon)
AucStatPurchased, v7.7.6000 (SwimmingSeadragon)
AucStatSimple, v7.7.6000 (SwimmingSeadragon)
AucStatStdDev, v7.7.6000 (SwimmingSeadragon)
AucUtilFixAH, v7.7.6000 (SwimmingSeadragon)
BeanCounter, v7.7.6000 (SwimmingSeadragon)
CanIMogIt, v8.0.0v1.9
Chatter, v1.5.4
DBMCore, v8.0.0
DBMDefaultSkin, v
DBMStatusBarTimers, v
Enchantrix, v7.7.6000 (SwimmingSeadragon)
EnchantrixBarker, v7.7.6000 (SwimmingSeadragon)
ExaltedPlus, v14
HandyNotes, vv1.5.2
HandyNotesSummerFestival, vv1.4.2
InFlightLoad, v8.0.001
Informant, v7.7.6000 (SwimmingSeadragon)
OmniCC, v8.0.0
Pawn, v2.2.21
Rematch, v4.8.1
SellJunk, v3.0.15
SlideBar, v7.7.6000 (SwimmingSeadragon)
Stubby, v7.7.6000 (SwimmingSeadragon)
TomTom, vv70300-1.0.0
TransmogCraftsman, v7.0.3.7
WorldQuestGroupFinder, v0.27
BlizRuntimeLib_enUS v8.0.1.80000 <none>
(ck=441)

I'm having the exact same issue as the guys above. But now in 2019