What steps will reproduce the problem?
1. Moving the alert windows and having an alert pop up.

What is the expected output? What do you see instead?
Expect just a moved alert frame window. The window is moved and stays where I put it but this error pops up when an alert pops up.

What version of the product are you using?
Latest.

Do you have an error log of what happened?
Date: 2016-07-18 06:24:42
ID: 1
Error occured in: Global
Count: 1
Message: ..\FrameXML\AlertFrames.lua line 226:
   attempt to index local 'frame' (a nil value)
Debug:
   [C]: ?
   ..\FrameXML\AlertFrames.lua:226 AlertFrame_SetLootWonAnchors()
   ..\FrameXML\AlertFrames.lua:181 AlertFrame_FixAnchors()
   ..\FrameXML\AlertFrames.lua:1232 GarrisonMissionAlertFrame_ShowAlert()
   ..\FrameXML\AlertFrames.lua:106
      ..\FrameXML\AlertFrames.lua:38

Please provide your addon list below.

AddOns:
  Swatter, v5.21d2.5561 (SanctimoniousSwamprat)
  WowheadLooter, v60014
  NPCScanOverlay, v6.2.4.5
  Altoholic, vr165
  AltoholicSearch, vr165
  AltoholicSummary, vr165
  Arh, v1.5.3
  Armory, vv12.9.1
  ArmoryGuildBank, vv12.9.1
  AtlasLoot, vv8.00.72
  Babylonian, v5.1.DEV.332(/embedded)
  BagBrother, v
  Bagnon, v6.2.7
  Bartender4, v4.6.14
  BodyGuardAway, v2.2
  BonusRollPreview, v60200.27-Release
  Configator, v5.1.DEV.382(/embedded)
  DailyGlobalCheck, v
  DataStore, vr55
  DataStoreAchievements, vr41
  DataStoreAgenda, vr22
  DataStoreAuctions, v6.0.001
  DataStoreCharacters, vr35
  DataStoreContainers, vr51
  DataStoreCrafts, vr68
  DataStoreCurrencies, vr30
  DataStoreInventory, vr43
  DataStoreMails, vr43
  DataStorePets, vr38
  DataStoreQuests, vr35
  DataStoreReputations, vr36
  DataStoreSpells, vr26
  DataStoreStats, vr25
  DataStoreTalents, vr51
  DBMCore, v
  DBMDefaultSkin, v
  DBMGarrisonInvasions, v
  DBMStatusBarTimers, v
  DebugLib, v5.1.DEV.337(/embedded)
  Decursive, v2.7.4.4
  DraenorTreasures, v6.2.4.21343
  GarrisonMissionManager, vv39
  HandyNotes, vv1.4.6
  HandyNotesDraenorTreasures, v1.19
  HealBot, v6.2.3.0
  HideNpcTracking, v1.0
  Informant, v5.21d2.5561 (SanctimoniousSwamprat)
  LibExtraTip, v5.12.DEV.390(/embedded)
  MBB, v
  MoveAnything, v15.3.6
  Paste, v1.4.6
  PetBattleTeams, v3.2.9
  PetJournalEnhanced, v2.9.16
  PetTracker, v6.2.6
  PetTrackerBreeds, v
  PetTrackerConfig, v
  PetTrackerJournal, v
  PetTrackerSwitcher, v
  PetTrackerUpgrades, v
  RaidAchieveFilter, v1.8.3
  RaidAchievement, v
  RaidAchievementOldModules, v
  RareSpawnOverlay, v6.1.00000
  Rarity, v1.0
  RarityOptions, v
  Recount, vv6.2.4d release
  SavedInstances, v6.3.2
  ServerHop, v1.22
  SexyMap, v2.4.27
  Stubby, v5.21d2.5561 (SanctimoniousSwamprat)
  TheUndermineJournal, v4.1.20160716
  TidyPlates, v6.16.1-6-g70b083d
  TidyPlatesNeon, v
  TidyPlatesHub, v
  TidyPlatesWidgets, v
  TinyPad, v2.1.0
  TipHelper, v5.12.DEV.380(/embedded)
  TomTom, vv60200-2.1.0
  Toxic, vv3.0.1
  XLoot, v6.2-13
  XLootFrame, v6.2-13
  XLootGroup, v6.2-13
  XLootMaster, v6.2-13
  XLootMonitor, v6.2-13
  BlizRuntimeLib_enUS v6.2.4.60200 <none>
  (ck=87c)