Error When Logging in at Scrollback / OnModuleEnable

Describe the bug Since the latest Release i am getting an LUA Error when Logging in. I've tracked it down to an Issue with my Friends List (See Swatter Trace below)

First Entry on my Friends List shows as "Unknown - Offline"

/dump BNGetFriendInfo(1) returns nil

Error is thrown due accessing null Index in lookup - Table

Expected behavior

Maybe checking for this corner case before adding to lookup

if battleTag ~= nil then
  lookup[battleTag] = accountInfo
end

Swatter Trace

Date: 2020-06-25 16:21:16
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\Prat-3.0\modules\Scrollback.lua line 172:
   table index is nil
Debug:
   ...tCouncil_Classic\RCLootCouncil\Core\ErrorHandler.lua:144:
      ...tCouncil_Classic\RCLootCouncil\Core\ErrorHandler.lua:142
   (tail call): ?
   Prat-3.0\modules\Scrollback.lua:172: getBattlettagLookupTable()
   Prat-3.0\modules\Scrollback.lua:186:
      Prat-3.0\modules\Scrollback.lua:185
   [C]: gsub()
   Prat-3.0\modules\Scrollback.lua:225: RestoreLastSession()
   Prat-3.0\modules\Scrollback.lua:87: OnModuleEnable()
   Prat-3.0\addon\modules.lua:189:
      Prat-3.0\addon\modules.lua:178
   [C]: ?
   ...ace\AddOns\Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:70:
      ...ace\AddOns\Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:65
   ...ace\AddOns\Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:527: EnableAddon()
   ...ace\AddOns\Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:540: EnableAddon()
   ...ace\AddOns\Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:620:
      ...ace\AddOns\Masque\Libs\AceAddon-3.0\AceAddon-3.0.lua:605
   [C]: LoadAddOn()
   ..\FrameXML\UIParent.lua:353: UIParentLoadAddOn()
   ..\FrameXML\UIParent.lua:424: TimeManager_LoadUI()
   ..\FrameXML\UIParent.lua:693:
      ..\FrameXML\UIParent.lua:658
Locals:
None

Addons you are running AddOns: Swatter, v8.2.6377 (SwimmingSeadragon) AucAdvanced, v8.2.6430 (SwimmingSeadragon) AucFilterBasic, v8.2.6364 (SwimmingSeadragon) AucStatHistogram, v8.2.6366 (SwimmingSeadragon) AucStatiLevel, v8.2.6370 (SwimmingSeadragon) AucStatPurchased, v8.2.6367 (SwimmingSeadragon) AucStatSimple, v8.2.6399 (SwimmingSeadragon) AucStatStdDev, v8.2.6369 (SwimmingSeadragon) AucUtilFixAH, v8.2.6371 (SwimmingSeadragon) AutoDismount, v1.0.3 BagBrother, v Bagnon, v8.3.5 BagnonFacade, v8.3.0 BeanCounter, v8.2.6434 (SwimmingSeadragon) ClassicLootAssistant, v Clique, vv1.0.3-classic DBMCore, v1.13.51 DBMDefaultSkin, v DBMStatusBarTimers, v Decursive, v2.7.7 DejaClassicStats, v1304r002 Details, v DetailsStreamer, v DetailsTinyThreat, v Dominos, v8.3.10 DominosCast, v DominosProgress, v DominosRoll, v Enchantrix, v8.2.6428 (SwimmingSeadragon) EnchantrixBarker, v8.2.6469 (SwimmingSeadragon) FishingBuddy, v0.7.3 Beta 5 FiveSecondRule, v1.21 GatherMate2, v1.45.5 GBankClassic, v0.902 Grid2, vr955 Grid2LDB, vr955 Grid2RaidDebuffs, vr955 HealComm, v HealCommClassic, v HealOrganizer, vv2.5-alpha Immersion, v1.2.3 KuiMedia, v KuiNameplates, v KuiNameplatesCore, v LFGMatchMaker, v1.0.8 LibClassicDurations, v1.59 MapCoords, v0.33 Masque, v8.2.8-Classic MasqueCaith, v8.2.6-Classic NovaWorldBuffs, v1.66 OmniCC, v8.3.5 outofrange, vv1.1 Prat30, v3.8.25 Prat30Libraries, v Questie, v5.10.3 RCLootCouncilClassic, v0.10.1 Scrap, v8.3.2 ShadowedUnitFrames, vv4.2.3-Classic SlideBar, v8.2.6375 (SwimmingSeadragon) SpinxFocus, v1.0 Stubby, v8.2.6376 (SwimmingSeadragon) ThreatClassic2, v2.20 VendorPrice, v1.3.5 WeakAuras, v2.17.8 WeaponSwingTimer, v4.1.0 BlizRuntimeLib_enUS v1.13.4.11304

sylvanaar / prat-3-0

Error When Logging in at Scrollback / OnModuleEnable #107