What steps will reproduce the problem?
1. hearthed while still in raid after killing world boss Drov
2.error popped up

What version of the product are you using?
r598

Do you have an error log of what happened?

Message: Interface\AddOns\Skada\Skada-r598.lua:1566 attempt to index local 'set' (a nil value)
Time: 12/23/14 15:52:35
Count: 1
Stack: Interface\AddOns\Skada\modules\Deaths.lua:59 in function <Interface\AddOns\Skada\modules\Deaths.lua:35
Interface\AddOns\Skada\modules\Deaths.lua:112 in function <Interface\AddOns\Skada\modules\Deaths.lua:106
Interface\AddOns\Skada\modules\Deaths.lua:131 in function `func'
...s\AckisRecipeList\libs\AceTimer-3.0\AceTimer-3.0.lua:55 in function <...s\AckisRecipeList\libs\AceTimer-3.0\AceTimer-3.0.lua:48

Locals: set = <table> {
 healingabsorbed = 332144
 _playeridx = <table> {
 }
 dispells = 5
 ccbreaks = 0
 time = 0
 interrupts = 0
 mobdone = 36233139
 damage = 78936459
 players = <table> {
 }
 deaths = 48
 mobs = <table> {
 }
 power = <table> {
 }
 mobtaken = 79469048
 healing = 42098201
 overhealing = 10248837
 alertDamage = 0
 starttime = 1419368765
 damagetaken = 44537951
 name = "Total"
 alertCount = 0
 shielding = 0
 mobhdone = 1733411
 last_action = 1419368765
 multistrikes = 1470
}
playerid = "Player-5-09AEE064"
playername = "Zetetic-Proudmoore"
timestamp = 1419371549.743
player = <table> {
 last = 1419371555
 healingabsorbed = 255
 class = "PRIEST"
 damaged = <table> {
 }
 dispells = 0
 ccbreaks = 0
 time = 257
 interrupts = 0
 power = <table> {
 }
 maxhp = 217140
 overhealing = 800838
 damage = 39170
 damagespells = <table> {
 }
 healingspells = <table> {
 }
 damagetaken = 1293535
 deathlog = <table> {
 }
 id = "Player-5-09AEE064"
 first = 1419371555
 shielding = 0
 damagetakenspells = <table> {
 }
 healing = 4253320
 healed = <table> {
 }
 name = "Zetetic"
 alertCount = 0
 alertDamage = 0
 auras = <table> {
 }
 alert = <table> {
 }
 multistrikes = 174
}
spellid = 41220
spellname = "Zetetic dies"
deathts = 1419371549.7441
deathlog = <table> {
 1 = <table> {
 }
 2 = <table> {
 }
 3 = <table> {
 }
 4 = <table> {
 }
 5 = <table> {
 }
 6 = <table> {
 }
 7 = <table> {
 }
 8 = <table> {
 }
 9 = <table> {
 }
 10 = <table> {
 }
 11 = <table> {
 }
 12 = <table> {
 }
 13 = <table> {
 }
 14 = <table> {
 }
 15 = <table> {
 }
 pos = 15
}
Skada = <table> {
 PET_BATTLE_CLOSE = <function> defined @Interface\AddOns\Skada\Skada.lua:1042
 displays = <table> {
 }
 UpdateDisplay = <function> defined @Interface\AddOns\Skada\Skada.lua:1815
 EnableModule = <function> defined @Interface\AddOns\AckisRecipeList\libs\AceAddon-3.0\AceAddon-3.0.lua:363
 modules = <table> {
 }
 CancelTimer = <function> defined @Interface\AddOns\AckisRecipeList\libs\AceTimer-3.0\AceTimer-3.0.lua:145
 IterateEmbeds = <function> defined @Interface\AddOns\AckisRecipeList\libs\AceAddon-3.0\AceAddon-3.0.lua:473
 windowdefaults = <table> {
 }
 getsetlabel_fs = <unnamed> {
 }
 ClearIndexes = <function> defined @Interface\AddOns\Skada\Skada.lua:1507
 GetSetTime = <function> defined @Interface\AddOns\Skada\Skada.lua:2081
 SetDefaultModulePrototype = <function> defined @Interface\AddOns\AckisRecipeList\libs\AceAddon-3.0\AceAddon-3.0.lua:440
 EndSegment = <function> defined @Interface\AddOns\Skada\Skada.lua:1258
 defaultModuleState = true
 SegmentMenu = <function> defined @Interface\AddOns\Skada\Menus.lua:302
 SetLabelFormats = <function> defined @Interface\AddOns\Skada\Skada.lua:436
 ScheduleTimer = <function> defined @Interface\AddOns\AckisRecipeList\libs\AceTimer-3.0\AceTimer-3.0.lua:92
 DisableModule = <function> defined @Interface\AddOns\AckisRecipeList\libs\AceAddon-3.0\AceAddon-3.0.lua:381
 AddFeed = <function> defined @Interface\AddOns\Skada\Skada.lua:2062
 last = <table> {
 }
 get_player = <function> defined @Interface\AddOns\Skada\Skada.lua:1541
 RemoveFeed = <function> defined @Interface\AddOns\Skada\Skada.lua:2067
 profilesFrame = <unnamed> {
 }
 optionsFrame = <unnamed> {
 }
 OpenMenu = <function> defined @Interface\AddOns\Skada\Menus.lua:5
 DeleteWindow = <function> defined @Interface\AddOns\Skada\Skada.lua:652
 char = <table> {
 }
 DeleteSet = <function> defined @Interface\AddOns\Skada\Skada.lua:1113
 RemoveMode = <functio

Please provide any additional information below.

Downed drov, people were dead while in combat due to adds still out but were running back. Hearthed while still in group and this error popped up.