Which software were you running?

• Addon version name: 11.0.6
• Client used: Retail

Have you read the changelog?
Yes

Please describe the bug.
Occurred after capturing a pet that I already had one of, it was a Spireshell Snail

Please describe how to reproduce it.
N/A

Any Screenshots?
N/A

Error Logs are Important!
2x PetTracker/addons/main/api/predict.lua:26: attempt to perform arithmetic on field '?' (a nil value)
[string "@PetTracker/addons/main/api/predict.lua"]:26: in function <PetTracker/addons/main/api/predict.lua:23>
[string "=(tail call)"]: ?
[string "@PetTracker/addons/main/classes/abstract/entity.lua"]:42: in function GetBreedIcon' [string "@PetTracker/addons/battle/units.lua"]:31: in function UpdatePortrait'
[string "@PetTracker/addons/battle/units.lua"]:10: in function <PetTracker/addons/battle/units.lua:10>
[string "=[C]"]: in function PetBattleUnitFrame_UpdateDisplay' [string "@Blizzard_PetBattleUI/Blizzard_PetBattleUI.lua"]:1029: in function PetBattleUnitFrame_SetUnit'
[string "@Blizzard_PetBattleUI/Blizzard_PetBattleUI.lua"]:457: in function `PetBattleFrame_UpdateAssignedUnitFrames'
[string "@Blizzard_PetBattleUI/Blizzard_PetBattleUI.lua"]:128: in function <Blizzard_PetBattleUI/Blizzard_PetBattleUI.lua:108>

Locals:
self =

{
QualityScale = {
}
BreedStats = {
}
Tag = "PETTRACKER_"
}
specie = 2678
level = 25
quality = 0
health = 1037
power = 223
speed = 241
base = {
1 = 7.500000
2 = 8.875000
3 = 7.625000
}
breeds = {
1 = 4
2 = 5
3 = 8
4 = 9
5 = 10
6 = 11
}
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to perform arithmetic on field '?' (a nil value)"
Addon = {
Switcher = PetTrackerSwitcher {
}
Enemy = {
}
Species = {
}
Rival = {
}
Tracker = {
}
RivalInfo = {
}
MultiTip = {
}
BattleListener = {
}
Battle = {
}
EnemyBar = Frame {
}
Rivals = {
}
Base = {
}
SpecieBreeds = {
}
sets = {
}
AbilityButton = {
}
Name = "PetTracker"
MaxPlayerQuality = 4
Objectives = Frame {
}
SpeciePin = {
}
Alerts = Sushi-3.2-Glowbox1 {
}
MaxLevel = 25
RivalPin = {
}
Entity = {
}
RivalOrder = {
}
JournalSlot = {
}
StablePin = {
}
Units = {
}
AbilityDisplay = {
}
Breeds = {
}
Pin = {
}
Tag = "PETTRACKER_"
MapCanvas = {
}
ProgressBar = {
}
SpecieStats = {
}
TrackToggle = PetTrackerTrackToggle {
}
RivalsJournal = PetTrackerRivalsJournal {
}
PetSlot = {
}
BattleRecord = {
}
JournalMods = {
}
Stables = {
}
state = {
}
AbilityAction = {
}
Pet = {
}
Tooltips = {
}
SpecieLine = {
}
BattleSlot = {
}
Predict = {
}
Ability = {
}
MaxQuality = 6
Specie = {
}
Maps = {
}
}