Pet Battle crashed with fatality error

[sauljaffe]

Which software were you running?

• Addon version name: Pettracker 11.0.2
• Client used: retail 11.0.2.56313

Have you read the changelog?
Yes

Please describe the bug.
I was in the middle of a pet battle when one of my pets died, and another should have been brought in. But, the pet battle just sort of "hung" because of a fatality from pet tracker.

Please describe how to reproduce it.
Not sure. As I said, I was in a battle and my first pet died. Battle hung when the second should have been brought in. I didn't get the option to switch a pet in though.

Error Logs are Important!
I'm including what I got from BugSack and BugGrabber but I don't think that this error is what was responsible for the crash. I can't tell. But, the fact that BugSack and BugGrabber indicate this error happened 11 times, and the first 10 didn't cause a crash, I'm doubting that the 11th did.

11x .../PetTracker/addons/main/classes/abstract/ability.lua:17: Usage: GetAttackModifier(attackType, defenseType)
[string "=[C]"]: in function GetAttackModifier' [string "@PetTracker/addons/main/classes/abstract/ability.lua"]:17: in function GetModifier'
[string "@PetTracker/addons/main/classes/combat/abilityButton.lua"]:27: in function Display' [string "@PetTracker/addons/battle/enemyBar.lua"]:58: in function ?'
[string "@AdvancedInterfaceOptions/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:109: in function <...ons/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:109>
[string "=[C]"]: ?
[string "@AdvancedInterfaceOptions/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:19: in function <...ons/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:15>
[string "@AdvancedInterfaceOptions/libs/CallbackHandler-1.0-8/CallbackHandler-1.0.lua"]:54: in function `Fire'
[string "@CoordsTracking/Libs/AceEvent-3.0-4/AceEvent-3.0.lua"]:120: in function <...ns/CoordsTracking/Libs/AceEvent-3.0/AceEvent-3.0.lua:119>