The first whisper of the session will always trigger an error. It never happens again until the next session. i have tried deleting Bad Boy and BadBoy_levels as well as Listener including the variable settings, deleting cache, then reinstalling.

Date: 2018-08-01 17:12:30
ID: 12
Error occured in: Global
Count: 1
Message: ..\AddOns\BadBoy_Levels\BadBoy_Levels.lua line 203:
attempt to index local 'f' (a nil value)
Debug:
(tail call): ?
BadBoy_Levels\BadBoy_Levels.lua:203: filterFunc()
Listener\src\listener.lua:558: ?()
...rer\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:145:
...rer\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:145
[string "safecall Dispatcher[18]"]:4:
[string "safecall Dispatcher[18]"]:4
[C]: ?
[string "safecall Dispatcher[18]"]:13: ?()
...rer\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:90: Fire()
...\AddOns!Vendorer\libs\AceEvent-3.0\AceEvent-3.0.lua:120:
...\AddOns!Vendorer\libs\AceEvent-3.0\AceEvent-3.0.lua:119
Locals:
None
AddOns:
GarbageProtector, v
Swatter, v7.3a.5701 (TasmanianThylacine)
Vendorer, v3.0.0
ACP, vr259
AdvancedInterfaceOptions, v1.2.4
AngryKeystones, v
ArtifactPowerUser, v3.2
AskMrRobot, v62
AtlasLoot, vv8.07.13
AtlasLootBurningCrusade, vv8.07.13
AtlasLootCataclysm, vv8.07.13
AtlasLootClassic, vv8.07.13
AtlasLootLegion, vv8.07.13
AtlasLootMistsofPandaria, vv8.07.13
AtlasLootWarlordsofDraenor, vv8.07.13
AtlasLootWrathoftheLichKing, vv8.07.13
Auctionator, v5.0.4
AutoAcceptEnchantReplace, v
AutoClickthrough, v
AutoLootPlus, v1.2.3
BadBoy, vv8.0.7
BadBoyLevels, vv8.0.0
BagBrother, v
Bagnon, v8.0.0
BagnonConfig, v8.0.0
Bartender4, v4.8.1
BartrubySummonPet, v1.28
BiggerFishToFryTracker, v1.5.1
BlizzMove, vv1.8
BonusRollPreview, v80000.46-Release
BrokerMemory, v1.1
BuyEmAll, v3.5.0
Carbonite, v8.0.0
CarboniteQuests, v8.0.0
ConfirmSP, v02.12
DBMCore, v8.0.1
DBMDefaultSkin, v
DBMStatusBarTimers, v
DBMVPARNOLD, v7.3.3
DBMVPVEM, v8.0.0
DefsCameraZoom, v80000.1
DejaCharacterStats, v800r103
Details, v
DetailsDeathGraphs, v
DetailsDmgRank, v
DetailsDpsTuning, v
DetailsEncounterDetails, v
DetailsRaidCheck, v
DetailsRaidInfoEmeraldNightmare, v
DetailsRaidInfoNighthold, v
DetailsRaidInfoTombOfSargeras, v
DetailsRaidInfoTrialOfValor, v
DetailsStreamer, v
DetailsTimeAttack, v
DetailsTinyThreat, v
DetailsVanguard, v
DressUp, v3.0.1
EasyObliterate, v31
EasyDisenchant, v
Een, v1.5.3
EmoteSplitter, v1.5.5
ExtraQuestButton, v80000.10-Release
FlashTaskBar, v
FriendGroups, v8.0
GlobalIgnoreList, v8.0.2
GTFO, v4.46.1
HandyNotes, vv1.5.2
HandyNotesDraenorTreasures, v1.21
HandyNotesLegionInstanceWorldQuests, vv1.13
HandyNotesLegionRaresTreasures, v1.1
HandyNotesLorewalkers, v1
HandyNotesLostAndFound, v1
HandyNotesPandariaTreasures, v1.06
HandyNotesTimelessIsleRareElites, v2.32
HandyNotesTimelessTreasures, v1.0.7
HandyNotesTreasureHunter, v1
HandyNotesWitheredChests, v1.2
HandyNotesWorldMapButton, v2.6
HideTalentAlert, vv1.4
IgnoreEnemyEmotes, v
ImprovedStableFrame, v3.3.1
IncentiveProgram, vr16
InstanceViewer, v2.0
InstantEagle, v1.01
ItemLinkLevel, v1.7.1
LazyGroupFinder, v1.5
LDBArtifact, vv1.7.2
LegionMapZoomer, v2.0
LegionWardrobe, v29
Listener, v2.1.3
MacroToolkit, vv7.3.0.2
MacroToolkitIcons, v7.2.0.0
Misspelled, v1.6.3
ModelPique, v8.0.1.0 Release
MogIt, v3.8.8
MogItArtifact, v3.8.8
MogItMail, v3.8.8
MogItOneHanded, v3.8.8
MogItOther, v3.8.8
MogItRanged, v3.8.8
MogItSetTransmog, v1.5.2
MogItTwoHanded, v3.8.8
MountJournalEnhanced, v1.8.1
MoveAnything, v17.0.0
NpcHider, v1.3
Oilvl, v8.0.0
OmniCC, v8.0.1
OmniCCConfig, v
ParagonReputation, v1.19
Paste, v1.4.10
Pawn, v2.2.22
PersonalLootHelper, v2.08
PetJournalEnhanced, v2.9.30
Postal, vv3.6.0
PounceCam, v2.4.01
Prat30, vr1171
Prat30Libraries, v
PremadeGroupsFilter, v1.17
QuestPlates, v8.0.0.1
RCLootCouncil, v2.8.2
SavedInstances, v8.0.3
ShadowedUnitFrames, vv4.2.1
SimPermut, v1.15.0
SimpleObjectiveProgress, vr26
Simulationcraft, v1.10.4
StatBlockMemory, v
TalkLess, v1.0.4
TidyPlates, v6.18.11
TidyPlatesGraphite, v
TidyPlatesGrey, v
TidyPlatesNeon, v
TidyPlatesQuatre, v
TidyPlatesHub, v
TidyPlatesWidgets, v
Titan, v5.14.1.80000
TitanBag, v5.14.1.80000
TitanClock, v5.14.1.80000
TitanGold, v5.14.1.80000
TitanLocation, v5.14.1.80000
TitanLootType, v5.14.1.80000
TitanPerformance, v5.14.1.80000
TitanPoints, v8.0.1
TitanRepair, v5.14.1.80000
TitanReputation, v3.9.3
TitanVolume, v5.14.1.80000
TitanXP, v5.14.1.80000
TomTom, vv80001-1.0.1
Tongues, v1.8.0
totalRP3, v1.4.3
totalRP3Data, v
TradeSkillMaster, vv4.0.4
TradeSkillMasterAppHelper, vv3.0.4
UnsheathMove, v1.7.1.0
WardrobeSort, vv1.4.1
WeakAuras, v2.6.6
WorldFlightMap, v8.0.0.2
WorldMapZoom, v
WorldQuestTracker, v
XLoot, v8.0-3
XLootGroup, v8.0-3
BlizRuntimeLib_enUS v8.0.1.80000
(ck=fca)

This isn't a BadBoy issue.