WowAce

What steps will reproduce the problem?
1. After log in in when mousing over an item in inventory or a linked item in chat.
2.
3.

What is the expected output? What do you see instead?

What version of the product are you using?
r86

Do you have an error log of what happened?

Date: 2010-11-17 00:20:32
ID: 1
Error occured in: Global
Count: 10
Message: ..\AddOns\ProfessionsBook\PB_Options.lua line 213:
   bad argument #1 to 'find' (string expected, got nil)
Debug:
   [C]: ?
   [C]: find()
   ProfessionsBook\PB_Options.lua:213: GetSkillLevel()
   ProfessionsBook\PB_Options.lua:144: ShowTooltip()
   ProfessionsBook\PB_Main.lua:91:
      ProfessionsBook\PB_Main.lua:89
   [C]: ?
   [C]: ?
   [C]: ?
   [C]: Outfitter_OrigSetHyperlink()
   Outfitter\Outfitter.lua:7515: SetHyperlink()
   Prat_LinkHover\module.lua:47: ?()
   ...AddOns\Broker_AllXP\libs\AceHook-3.0\AceHook-3.0.lua:90:
      ...AddOns\Broker_AllXP\libs\AceHook-3.0\AceHook-3.0.lua:87
AddOns:

Please provide any additional information below.

That error is a bug in ProfessionsBOOK, this website is the Ace3 rewrite ProfessionsVAULT.

I am having the same issue.
Date: 2010-11-18 22:42:48
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\ProfessionsBook\PB_Options.lua line 213:
   bad argument #1 to 'find' (string expected, got nil)
Debug:
   [C]: ?
   [C]: find()
   ProfessionsBook\PB_Options.lua:213 GetSkillLevel()
   ProfessionsBook\PB_Options.lua:144 ShowTooltip()
   ProfessionsBook\PB_Main.lua:91
      ProfessionsBook\PB_Main.lua:89
   [C]: ?
   [C]: SetBagItem()
   ..\FrameXML\ContainerFrame.lua:780 ContainerFrameItemButton_OnEnter()
   ArkInventory\ArkInventory.lua:6120 Frame_Item_OnEnter()
   [string "*:OnEnter"]:1:
      [string "*:OnEnter"]:1
AddOns:
  Swatter, v5.9.4960 (WhackyWallaby)
  Ace3, v
  ACP, v3.3.9
  ArkInventory, v3.02
  ArkInventoryRules, v
  Armory, vv9.2.6
  ArmoryGuildBank, vv9.2.6
  AtlasLoot, vv5.11.07
  AucAdvanced, v5.9.4960 (WhackyWallaby)
  AucFilterBasic, v5.9.4960 (WhackyWallaby)
  AucFilterOutlier, v5.9.4960.2531
  AucMatchUndercut, v5.9.4960.2531
  AucScanData, v5.9.4960 (WhackyWallaby)
  AucStatHistogram, v5.9.4960 (WhackyWallaby)
  AucStatiLevel, v5.9.4960 (WhackyWallaby)
  AucStatPurchased, v5.9.4960 (WhackyWallaby)
  AucStatSales, v5.9.4960.2842
  AucStatSimple, v5.9.4960 (WhackyWallaby)
  AucStatStdDev, v5.9.4960 (WhackyWallaby)
  AucStatWOWEcon, v5.9.4960.2530
  AucUtilAHWindowControl, v5.9.4960.3311
  AucUtilAppraiser, v5.9.4960.2530
  AucUtilAskPrice, v5.9.4960.3175
  AucUtilAutoMagic, v5.9.4960.3142
  AucUtilCompactUI, v5.9.4960.2530
  AucUtilEasyBuyout, v5.9.4960.3583
  AucUtilFixAH, v5.9.4960 (WhackyWallaby)
  AucUtilGlypher, v5.9.4960.2545
  AucUtilItemSuggest, v5.9.4960.3108
  AucUtilPriceLevel, v5.9.4960.2545
  AucUtilScanButton, v5.9.4960.2530
  AucUtilScanFinish, v5.9.4960.2530
  AucUtilScanProgress, v5.9.4960.2530
  AucUtilScanStart, v5.9.4960.4819
  AucUtilSearchUI, v5.9.4960.3655
  AucUtilSimpleAuction, v5.9.4960.4546
  AucUtilVendMarkup, v5.9.4960.2530
  AutoBarMuffin, vv4.0.1.03
  Babylonian, v5.1.DEV.130
  BankStack, vv20-1
  Bartender4, v4.4.13
  BeanCounter, v5.9.4960 (WhackyWallaby)
  BonusScanner, v5.4.0
  Configator, v5.1.DEV.282
  CTMailMod, v4.003
  CTViewport, v4.003
  DebugLib, v5.1.DEV.275
  ElkBuffBars, v2.3.0-162
  Examiner, v10.11.07
  ExplorerCoords, v1.22
  FaceMelter, v4.021
  FlightMap, v4.0.1
  Informant, v5.9.4960 (WhackyWallaby)
  Prat30, vr741      
  Prat30Libraries, v
  ProfessionsBook, v3.1 beta
  SlideBar, v5.9.4960 (WhackyWallaby)
  Squeenix, v3.3.0.12
  Stubby, v5.9.4960 (WhackyWallaby)
  TipTac, v10.11.17
  TipTacItemRef, v10.11.17
  TipTacTalents, v10.11.17
  Titan, v4.3.9.40000 - Revision 386
  TitanBag, v4.3.9.40000
  TitanClock, v4.3.9.40000
  TitanCoords, v4.3.9.40000
  TitanGoldTracker, v4.3.9.40000
  TitanLootType, v4.3.9.40000
  TitanPerformance, v4.3.9.40000
  TitanRepair, v4.3.9.40000
  TitanVolume, v4.3.9.40000
  TitanXP, v4.3.9.40000
  WIM, v3.4.2
  XPerl, v3.1.1
  XPerlArcaneBar, v
  XPerlParty, v
  XPerlPartyPet, v
  XPerlPlayer, v
  XPerlPlayerBuffs, v
  XPerlPlayerPet, v
  XPerlRaidAdmin, v
  XPerlRaidFrames, v
  XPerlRaidHelper, v
  XPerlRaidMonitor, v
  XPerlRaidPets, v
  XPerlTarget, v
  XPerlTargetTarget, v
  BlizRuntimeLib_enUS v4.0.3.40000 <us>
  (ck=9ee)