Hey. This popped up. Turned off all other addons to confirm it wasn't a conflict. Seems like the Tutorial window when you first install it is having issues.

Message: ...ker/libs/CustomTutorials-2.1/CustomTutorials-2.1.lua:55: attempt to index field 'TitleText' (a nil value)
Time: Tue Nov 8 14:30:47 2022
Count: 1
Stack: ...ker/libs/CustomTutorials-2.1/CustomTutorials-2.1.lua:55: attempt to index field 'TitleText' (a nil value)
[string "@Interface/AddOns/PetTracker/libs/CustomTutorials-2.1/CustomTutorials-2.1.lua"]:55: in function <...ker/libs/CustomTutorials-2.1/CustomTutorials-2.1.lua:36>
[string "@Interface/AddOns/PetTracker/libs/CustomTutorials-2.1/CustomTutorials-2.1.lua"]:199: in function TriggerTutorial' [string "@Interface/AddOns/PetTracker/addons/config/tutorials.lua"]:36: in function Start'
[string "@Interface/AddOns/PetTracker/addons/config/tutorials.lua"]:28: in function ?' [string "@Interface/AddOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua"]:20: in function <...dOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua:18> [string "@Interface/AddOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua"]:56: in function <...dOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua:53> [string "=[C]"]: ? [string "@Interface/AddOns/PetTracker/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua"]:29: in function <...ker/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:25> [string "@Interface/AddOns/PetTracker/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua"]:64: in function Fire'
[string "@Interface/AddOns/PetTracker/libs/AceEvent-3.0/AceEvent-3.0.lua"]:120: in function <...AddOns/PetTracker/libs/AceEvent-3.0/AceEvent-3.0.lua:119>
[string "=[C]"]: in function LoadAddOn' [string "@Interface/AddOns/PetTracker/addons/main/main.lua"]:46: in function ?'
[string "@Interface/AddOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua"]:20: in function <...dOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua:18>
[string "@Interface/AddOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua"]:56: in function <...dOns/PetTracker/libs/WildAddon-1.0/WildAddon-1.0.lua:53>
[string "=[C]"]: ?
[string "@Interface/AddOns/PetTracker/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua"]:29: in function <...ker/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:25>
[string "@Interface/AddOns/PetTracker/libs/CallbackHandler-1.0/CallbackHandler-1.0.lua"]:64: in function Fire' [string "@Interface/AddOns/PetTracker/libs/AceEvent-3.0/AceEvent-3.0.lua"]:120: in function <...AddOns/PetTracker/libs/AceEvent-3.0/AceEvent-3.0.lua:119> [string "=[C]"]: in function LoadAddOn'
[string "@Interface/FrameXML/UIParent.lua"]:530: in function UIParentLoadAddOn' [string "@Interface/FrameXML/UIParent.lua"]:585: in function CombatLog_LoadUI'
[string "@Interface/FrameXML/UIParent.lua"]:1468: in function <Interface/FrameXML/UIParent.lua:1350>

Locals:

This is a duplicate of #313 (or vice-versa). The fix for that issue should also correct this one.