This is the same error I reported in #335 but now slighlty different line numbers due to updates to Craftsim.

Date: 2024-07-30 19:41:23
ID: 5
Error occured in: Global
Count: 1
Message: Interface/AddOns/CraftSim/Classes/RecipeData.lua line 469:
attempt to index field 'specializationData' (a nil value)
Debug:
[string "=(tail call)"]: ?
[string "=(tail call)"]: ?
[string "=[C]"]: ?
[string "@Interface/AddOns/CraftSim/Classes/RecipeData.lua"]:469: UpdateProfessionStats()
[string "@Interface/AddOns/CraftSim/Classes/RecipeData.lua"]:240: new()
[string "@Interface/AddOns/CraftSim/Libs/classic.lua"]:64: RecipeData()
[string "@Interface/AddOns/CraftSim/Init/Init.lua"]:526: TriggerModulesByRecipeType()
[string "@Interface/AddOns/CraftSim/Init/Init.lua"]:85:
Interface/AddOns/CraftSim/Init/Init.lua:83
[string "@Interface/AddOns/CraftSim/Libs/GUTIL/GUTIL.lua"]:564: checkCondition()
[string "@Interface/AddOns/CraftSim/Libs/GUTIL/GUTIL.lua"]:570: WaitFor()
[string "@Interface/AddOns/CraftSim/Init/Init.lua"]:74: TriggerModuleUpdate()
[string "@Interface/AddOns/CraftSim/Init/Init.lua"]:69:
Interface/AddOns/CraftSim/Init/Init.lua:68
Locals:

AddOns:
NoTaint2, vr221121
Swatter, v3.4.6837 (SwimmingSeadragon)
WowheadLooter, v110000
AchievementsReminder, v
ACP, v3.5.12
AddonFactory, v11.0.001
AdvancedInterfaceOptions, v2.0.0
AllTheThings, vTWW-4.0.1
Altoholic, v11.0.001
AltoholicSummary, v11.0.001
AskMrRobot, v140
Auctionator, v11.0.0
BadBoy, vv10.2.5
BarrelsOEasy, v1.2.02
BattlePetDailyTamer, v3.3.0
BattlePetBattleUITweaks, v2.2.1
BattlePetBreedID, vv1.29.0
BattlePetCompletionist, v11.0.0-20240725-3
BetterBags, vv0.1.80
BetterBagsBetterSort, vv1.1.3
BetterFishing, v1.1.24
BlizzMove, vv3.5.33
BlizzMovePluginRematch, vv1.0.13
BtWQuests, v2.43.1
BtWQuestsDragonflight, v11.1
BuyEmAll, v3.5.17
CanIMogIt, v11.0.2v2.1
ClassTimer, v2.4.2023.1
Collectionator, v1.20
ConfirmSP, v0.21.07.06
Copybara, v1.1.2-release
CraftSim, v17.0.2
CursorTrail, v11.0.0.1
DataStore, v2024.07.28
DataStoreAchievements, v2024.07.28
DataStoreAgenda, v2024.07.28
DataStoreAuctions, v2024.07.28
DataStoreCharacters, v2024.07.28
DataStoreContainers, v2024.07.28
DataStoreCrafts, v2024.07.28
DataStoreCurrencies, v2024.07.28
DataStoreGarrisons, v2024.07.28
DataStoreInventory, v2024.07.28
DataStoreMails, v2024.07.28
DataStorePets, v2024.07.28
DataStoreQuests, v2024.07.28
DataStoreReputations, v2024.07.28
DataStoreSpells, v2024.07.28
DataStoreStats, v2024.07.28
DataStoreTalents, v2024.07.28
DBMCore, v11.0.2
DBMStatusBarTimers, v11.0.2
DBMVPVEM, veeae112
Decursive, v2.7.20
DejaCharacterStats, vR110000r1
Dejunk, v1.10.6
DeModal, v0.8.1
Details, v#Details.12822.159
DetailsCompare2, v
DetailsEncounterDetails, v
DetailsRaidCheck, v
DetailsStreamer, v
DetailsTinyThreat, v
DetailsVanguard, v
DialogueUI, v0.3.6
EasyMail, v4.5.4e
EasyScrap, v34
FamilyFamiliarHelper, v2.2.0
GTFO, v5.10
GuildRosterManager, v1.99099
GuildBankSnapshots, vv3.5.2
HandyNotes, vv1.6.20.3
HandyNotesArgus, vv0.39
HandyNotesBattleForAzeroth, v63
HandyNotesBrokenShore, vv1.52
HandyNotesDungeonLocations, v2.6.3
HandyNotesMistsOfPandariaTreasures, vv33
HandynotesPandaria, v1.8
HandyNotesShadowlandsTreasures, vv78
HandyNotesTreasureHunter, vv35
HandyNotesWorldMapButton, v110002.01-Release
InFlightLoad, v10.0.25
InstanceAchievementTracker, v5.2.0
InterruptNoSpam, v1.8.19
Journalator, v1.90
JournalatorDisplay, v@project-version@
JournalatorOptionsUI, v@project-version@
JournalatorStatistics, v@project-version@
KrowiAchievementFilter, v75.1
LargerMacroIconSelection, vv1.8.4
LeatrixPlus, v11.0.01
LoggerHeadLite, v1.6.7
MacroToolkit, vv2.3.1
MacroToolkitIcons, vv2.3.1
MasterPlanA, vA
MaxDps, v10.0.64
MinimalArchaeology, v11.0.0
mOnArsWardrobeHelper, v1.30
MRT, v4880
Narcissus, v1.6.6
NPCTime, v1.0.22
OpenableBeGone, v1.35
Paste, v1.4.10
Pawn, v2.9.14
PetBattleMaster, v10.0.3
Plater, vPlater-v583b-Retail
Plumber, v1.3.3
PointBlankSniper, v5.36
ProtoformSynthesisFieldJournal, v1.3.11
QuestPlates, v10.0.2.1
QuestSounds, v901-2020.10.14
RaidAchieveFilter, v2.1
RaiderIO, v10.2.7 (v202407300812)
RaiderIODBEUF, v10.2.7 (v202407300812)
RaiderIODBEUM, v10.2.7 (v202407300812)
RaiderIODBEUR, v10.2.7 (v202407300812)
RaidSkipper, v1.0.20
RareScanner, v11.0.0.1
Rarity, v1.0 (r733-release)
RarityOptions, v
Rematch, v5.2.2
RepSwitch, v11.0.0.26
SavedInstances, v11.0.1
SharedMediaCausese, v
SilverDragon, vv2024.8
SilverDragonOverlay, vv2024.8
SilverDragonRangeExtender, vv2024.8
Simulationcraft, v11.0.0-01
SoulshapeJournal, v1.2.4
tdBattlePetScript, vv1.10.2
TellMeWhen, v11.0.4
TLDRMissions, v11.0-001
TomeOfTeleportation, v
TomTom, vv4.0.1-release
TradeSkillMaster, vv4.14.5
TradeSkillMasterAppHelper, vv4.13.2
TransmogRoulette, v9.1.0.0
tullaRange, v11.0.0
TurnIn, v2.2
VenturePlan, v4.42
WeakAuras, v5.15.4
WeakAurasArchive, v5.15.4
WeakAurasCompanion, v5.2.3
wMarker, v3.0.16
WorldQuestTracker, vv11.0.0.503-Retail
WoWthingCollector, v11.0.0.2
WQAchievements, vv11.0.0-2
XanDurability, v6.5
ZygorGuidesViewer, v9.5
BlizRuntimeLib_enUS v11.0.0.110000
(ck=104a)

Thanks :-)

should now be fixed in 17.0.3