Running Software (issues missing this information will be deleted):

• Addon version: PetTracker 10.0.0, UltraSquirt 0.9.6
• Server patch: [e.g. Build 8.0.1.27178]

Have you read the changelog? (please don't waste our time)
Changelog Read.

Describe the bug

1. Load UltraSquirt
2. Click on Pet Master
3. Click on Target icon in UltraSquirt to select the Pet Master.
4. Press Space bar to start fight.
5. Lua Error shows (everytime).

Note: Dismissing the Lua error window allows UltraSquirt to finishe the battle.

To Reproduce
Steps to reproduce the behaviour:
See Above

Expected behaviour
The Lua error should not occur.

Screenshots
Not needed.

Error Logs
From In Game Lua Error:
Message: ...ce/AddOns/PetTracker/addons/main/features/gossip.lua:28: attempt to call global 'GossipFrame_GetTitleButtonCount' (a nil value)
Time: Wed Jan 11 22:32:47 2023
Count: 4
Stack: ...ce/AddOns/PetTracker/addons/main/features/gossip.lua:28: attempt to call global 'GossipFrame_GetTitleButtonCount' (a nil value)
[string "@Interface/AddOns/PetTracker/addons/main/features/gossip.lua"]:28: in function <...ce/AddOns/PetTracker/addons/main/features/gossip.lua:23>
[string "=[C]"]: in function Update' [string "@Interface/FrameXML/GossipFrame.lua"]:66: in function HandleShow'
[string "@Interface/FrameXML/CustomGossipFrameBase.lua"]:47: in function `HandleOpenEvent'
[string "@Interface/FrameXML/CustomGossipFrameBase.lua"]:39: in function <Interface/FrameXML/CustomGossipFrameBase.lua:37>

Locals: unit = "Creature-0-3776-1220-3867-107489-00003F6C69"
id = 107489
(*temporary) = nil
(*temporary) = "attempt to call global 'GossipFrame_GetTitleButtonCount' (a nil value)"
Addon =

{
Switcher = PetTrackerSwitcher {
}
Gossip = {
}
Enemy = {
}
GetColor = defined @Interface/AddOns/PetTracker/addons/main/main.lua:66
Species = {
}
Rival = {
}
OnPetsChanged = defined @Interface/AddOns/PetTracker/addons/main/main.lua:53
Tracker = {
}
Search = defined @Interface/AddOns/PetTracker/addons/main/api/search.lua:26
RivalInfo = {
}
Delay = defined @Interface/AddOns/BagBrother/libs/MutexDelay-1.0/MutexDelay-1.0.lua:27
MultiTip = {
}
BattleListener = {
}
RegisterMessage = defined @Interface/AddOns/BagBrother/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:90
UnregisterMessage = defined @Interface/AddOns/BagBrother/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:153
Battle = {
}
EnemyBar = Frame {
}
Rivals = {
}
Base = {
}
UnregisterSignal = defined @Interface/AddOns/BagBrother/libs/WildAddon-1.0/WildAddon-1.0.lua:78
SpecieBreeds = {
}
RegisterEvent = defined @Interface/AddOns/BagBrother/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:90
sets = {
}
OnBattle = defined @Interface/AddOns/PetTracker/addons/main/main.lua:57
AbilityButton = {
}
OnEnable = defined @Interface/AddOns/PetTracker/addons/main/main.lua:26
Name = "PetTracker"
BattleSlot = {
}
Objectives = Frame {
}
SendSignal = defined @Interface/AddOns/BagBrother/libs/WildAddon-1.0/WildAddon-1.0.lua:82
SpeciePin = {
}
NewModule = defined @Interface/AddOns/BagBrother/libs/WildAddon-1.0/WildAddon-1.0.lua:68
Alerts = Sushi-3.1-Glowbox1 {
}
MaxLevel = 25
RivalPin = {
}
Entity = {
}
RivalOrder = {
}
JournalSlot = {
}
TextLine = {
}
StablePin = {
}
Units = {
}
AbilityDisplay = {
}
Breeds = {
}
Pin = {
}
Tag = "PETTRACKER_"
TextList = {
}
MapCanvas = {
}
ProgressBar = {
}
SpecieStats = {
}
MapSearch = {
}
PetSlot = {
}
TrackToggle = PetTrackerTrackToggle {
}
SendMessage = defined @Interface/AddOns/BagBrother/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:59
RivalsJournal = PetTrackerRivalsJournal {
}
BattleRecord = {
}
Stables = {
}
UnregisterAllEvents = defined @Interface/AddOns/BagBrother/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:174
AbilityAction = {
}
JournalMods = {
}
RegisterSignal = defined @Interface/AddOns/BagBrother/libs/WildAddon-1.0/WildAddon-1.0.lua:74
UnregisterAllMessages = defined @Interface/AddOns/BagBrother/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:174
Pet = {
}
state = {
}
Delaying = defined @Interface/AddOns/BagBrother/libs/MutexDelay-1.0/MutexDelay-1.0.lua:46
Tooltips = <tab

From Console: Couldn't get an error log.
Type /console scriptErrors 1 in the chat and reload the game. If an error window appears, write here the message with ID: 1 (labelled 1/X). This is generally NOT the message that the window shows by default.

Additional context
Should be about it.