I've got a strange error. I can find premades, but premade leader cant invite me. And sometimes Im recieving error:

Date: 2014-02-28 12:11:56
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\oqueue\oqueue_tooltips.lua line 687:
   attempt to index field '?' (a boolean value)
Debug:
   oqueue\oqueue_tooltips.lua:687: pm_tooltip_clear()
   oqueue\oqueue_tooltips.lua:730: pm_tooltip_set()
   oqueue\oqueue.lua:9080: on_premade_item_enter()
   oqueue\oqueue.lua:9630:
      oqueue\oqueue.lua:9630
Locals:
(for index) = 1
(for limit) = 15
(for step) = 1
i = 1
(*temporary) = true
(*temporary) = true
(*temporary) = nil
(*temporary) = "attempt to index field '?' (a boolean value)"
pm_tooltip = oqpmtooltip {
 nRows = 15
 splat = <unnamed> {
 }
 0 = <userdata>
 right = <table> {
 }
 left = <table> {
 }
 emphasis_texture = <unnamed> {
 }
}

AddOns:
  Swatter, v4.4.1 (<%codename%>)
  NPCScan, v5.4.2.6
  NPCScanOverlay, v5.4.2.1
  NPCScanOverlayBroker, v1.2.4
  AchievementsReminder, v
  AucAdvanced, v5.19.5445 (QuiescentQuoll)
  AucFilterBasic, v5.19.5445 (QuiescentQuoll)
  AucFilterOutlier, v5.19.5445.5437(5.19/embedded)
  AucMatchUndercut, v5.19.5445.5364(5.19/embedded)
  AucStatHistogram, v5.19.5445 (QuiescentQuoll)
  AucStatiLevel, v5.19.5445 (QuiescentQuoll)
  AucStatPurchased, v5.19.5445 (QuiescentQuoll)
  AucStatSales, v5.19.5445.5376(5.19/embedded)
  AucStatSimple, v5.19.5445 (QuiescentQuoll)
  AucStatStdDev, v5.19.5445 (QuiescentQuoll)
  AucStatWOWEcon, v5.19.5445.5323(5.19/embedded)
  AucUtilAHWindowControl, v5.19.5445.5347(5.19/embedded)
  AucUtilAppraiser, v5.19.5445.5438(5.19/embedded)
  AucUtilAskPrice, v5.19.5445.5347(5.19/embedded)
  AucUtilAutoMagic, v5.19.5445.5443(5.19/embedded)
  AucUtilCompactUI, v5.19.5445.5444(5.19/embedded)
  AucUtilEasyBuyout, v5.19.5445.5427(5.19/embedded)
  AucUtilFixAH, v5.19.5445 (QuiescentQuoll)
  AucUtilItemSuggest, v5.19.5445.5417(5.19/embedded)
  AucUtilPriceLevel, v5.19.5445.5444(5.19/embedded)
  AucUtilScanButton, v5.19.5445.5403(5.19/embedded)
  AucUtilScanFinish, v5.19.5445.5347(5.19/embedded)
  AucUtilScanProgress, v5.19.5445.4979(5.19/embedded)
  AucUtilScanStart, v5.19.5445.5347(5.19/embedded)
  AucUtilSearchUI, v5.19.5445.5373(5.19/embedded)
  AucUtilSimpleAuction, v5.19.5445.5415(5.19/embedded)
  AucUtilVendMarkup, v5.19.5445.4828(5.19/embedded)
  Auctionator, v3.1.5
  AutoRepair, v
  Babylonian, v5.1.DEV.332(/embedded)
  BagBrother, v
  Bagnon, v5.4.9
  Bartender4, v4.5.13.2
  BeanCounter, v5.19.5445 (QuiescentQuoll)
  Clique, vv50400-1.0.0
  Configator, v5.1.DEV.359(/embedded)
  CrapAway, v
  DBMCore, v
  DBMStatusBarTimers, v
  DebugLib, v5.1.DEV.337(/embedded)
  Enchantrix, v5.19.5445 (QuiescentQuoll)
  EnchantrixBarker, v5.19.5445 (QuiescentQuoll)
  Gatherer, v4.4.1
  Grid, v5.4.1.1628
  HandyNotes, v1.2.0
  HandyNotesTimelessIsleRareElites, v2.31
  HandyNotesTimelessIsleChests, v1.09
  HandynotesTimelessTreasures, v1.0-beta
  Informant, v5.19.5445 (QuiescentQuoll)
  LibExtraTip, v5.12.DEV.355(/embedded)
  LibSharedMedia30, v3.0-81
  MikScrollingBattleText, v5.7.131
  OmniCC, v5.4.3
  oqueue, v1.8.0
  Overachiever, v0.73
  Postal, v3.5.1
  Prat30, v3.5.7      
  Prat30HighCPUUsageModules, v
  Prat30Libraries, v
  Quartz, v3.1.4
  RaidAchievement, v1.129
  RareCoordinator, v
  Recount, v
  ReforgeLite, v1.37
  SexyMap, v2.4.15
  ShieldsUp, v5.4.1.167
  SlideBar, v4.4.1 (<%codename%>)
  Stubby, v5.19.5445 (QuiescentQuoll)
  TellMeWhen, v6.2.6
  TidyPlates, v6.13.4
  TidyPlatesGraphite, v
  TidyPlatesGrey, v
  TidyPlatesNeon, v
  TidyPlatesQuatre, v
  TidyPlatesHub, v
  TidyPlatesWidgets, v
  TipHelper, v5.12.DEV.351(/embedded)
  TomTom, vv50400-1.0.0
  TotemTimers, v11.0.18
  WeakAuras, v2.0.5
  BlizRuntimeLib_ruRU v5.4.7.50400 <eu>
  (ck=b54)

And another error:

Date: 2014-02-28 23:28:29
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\oqueue\battlegrounds\fog_of_war.lua line 177:
   attempt to index local 'f' (a nil value)
Debug:
   oqueue\battlegrounds\fog_of_war.lua:177: fog_clear()
   oqueue\oqueue.lua:21887: ?()
   oqueue\oqueue.lua:20986:
      oqueue\oqueue.lua:20983
Locals:
f = nil
(*temporary) = <function> defined =[C]:-1
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index local 'f' (a nil value)"