This error happens whenever Altairus breathes. I've only been able to test this on normal, and don't know if it happens on heroic.

Message: ...s/DBM-Party-Cataclysm/TheVortexPinnacle/Altairus.lua:92: attempt to index upvalue 'timerDownburstCD' (a nil value)
Time: Thu Sep 26 00:17:18 2024
Count: 3
Stack: ...s/DBM-Party-Cataclysm/TheVortexPinnacle/Altairus.lua:92: attempt to index upvalue 'timerDownburstCD' (a nil value)
[string "@Interface/AddOns/DBM-Party-Cataclysm/TheVortexPinnacle/Altairus.lua"]:92: in function <...s/DBM-Party-Cataclysm/TheVortexPinnacle/Altairus.lua:78>
[string "@Interface/AddOns/DBM-Party-Cataclysm/TheVortexPinnacle/Altairus.lua"]:122: in function `handler'
[string "@Interface/AddOns/DBM-Core/DBM-Core.lua"]:1080: in function <Interface/AddOns/DBM-Core/DBM-Core.lua:1067>
[string "=(tail call)"]: ?
[string "@Interface/AddOns/DBM-Core/DBM-Core.lua"]:1080: in function <Interface/AddOns/DBM-Core/DBM-Core.lua:1067>

Locals: self =

{
stats = {
}
isTrashMod = false
numBoss = 1
ignoreBestkill = false
modId = "DBM-Party-Cataclysm"
engagedDiffText = "Normal - "
revision = 20240727190007
yells = {
}
DefaultOptions = {
}
iconRestore = {
}
OnCombatStart = defined @Interface/AddOns/DBM-Party-Cataclysm/TheVortexPinnacle/Altairus.lua:100
engagedDiffIndex = 1
isDummyMod = false
encounterId = 1041
localization = {
}
announces = {
}
subTab = 8
timers = {
}
specwarns = {
}
instanceId = 68
modelId = 34265
engagedDiffModifier = 0
sendMainBossGUID = true
engagedDiff = "normal5"
inCombatOnlyEventsRegistered = 1
groupSpells = {
}
SPELL_AURA_APPLIED = defined @Interface/AddOns/DBM-Party-Cataclysm/TheVortexPinnacle/Altairus.lua:141
SyncThreshold = 8
SPELL_CAST_START = defined @Interface/AddOns/DBM-Party-Cataclysm/TheVortexPinnacle/Altairus.lua:115
zones = {
}
statTypes = "normal,heroic"
Options = {
}
optionCategories = {
}
addon = {
}
combatInfo = {
}
id = "115"
categorySort = {
}
hotfixNoticeRev = 20230527000000
groupOptions = {
}
SPELL_CAST_SUCCESS = defined @Interface/AddOns/DBM-Party-Cataclysm/TheVortexPinnacle/Altairus.lua:126
creatureId = 43873
usedIcons = {
}
inCombat = true
vb = {
}
inCombatOnlyEvents = {
}
}
ICD = 6
(*temporary) = nil
(*temporary) = nil
(*temporary) = 6
(*temporary) = defined @Interface/AddOns/DBM-Core/modules/objects/Timer.lua:575
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = 1
(*temporary) = "attempt to index upvalue 'timerDownburstCD' (a nil value)"
timerBreathCD = {
spellId = 88308
icon = 135836
option = "Timer88308cdcount"
type = "cdcount"
simpType = "cd"
id = "Timer88308cdcount"
objClass = "Timer"
mod = {
}
startedTimers = {
}
colorType = 3
name = "Chilling Breath"
timer = 13.400000
isPriority = false
}
timerCalltheWindCD = {
spellId = 88276
icon = 135833
option = "Timer88276cdcount"
type = "cdcount"
simpType = "cd"
id = "Timer88276cdcount"
objClass = "Timer"
mod = {
}
startedTimers = {
}
colorType = 6
name = "Call the Wind"
timer = 20.600000
isPriority = false
}
timerDownburstCD = nil