Hey Tercioo!

I ran into this glitch fairly often running Details Damage Meter in Durotar during the classic stress test. I've attached the full LUA dump in a gist for you. I can take a look at it as well, although I have to admit the Portuguese variable names are throwing me for a loop :)

Calthaza is right, it happens on normal mobs too It appears to happen whenever I get a debuff that's a dot on me, so the scorpid poison will fairly reliably set it off

https://gist.github.com/vazheel/25a8843b02f797b98aa2815e6175de91

Update: I added a simple nil check around this line https://github.com/Tercioo/Details-Damage-Meter/blob/master/functions/spellcache.lua#L237

And it went away -- I don't really understand what this code is trying to accomplish, so I leave it up to you if this would be a reasonable solution

10x Details\functions\spellcache.lua:237: attempt to concatenate local 'nome' (a nil value)
Details\functions\spellcache.lua:237: in function SpellIsDot' Details\classes\classe_damage_habilidade.lua:75: in function funcao_de_criacao'
...aceDetails\classes\container_habilidades.lua:71: in function `PegaHabilidade'
Details\core\parser.lua:950: in function <Details\core\parser.lua:419>
(tail call): ?

Locals:
InCombatSkipped

I am killing Mottled Boars in durotar, so it does not have anything with debuff as the other guy mentioned.

Error continues with latest update:

Message: Interface\AddOns\Details\functions\spellcache.lua:237: attempt to concatenate local 'nome' (a nil value)
Time: Sat Aug 10 06:39:11 2019
Count: 8
Stack: Interface\AddOns\Details\functions\spellcache.lua:237: attempt to concatenate local 'nome' (a nil value)
Interface\AddOns\Details\functions\spellcache.lua:237: in function SpellIsDot' ...\AddOns\Details\classes\classe_damage_habilidade.lua:75: in function funcao_de_criacao'
...ace\AddOns\Details\classes\container_habilidades.lua:71: in function `PegaHabilidade'
Interface\AddOns\Details\core\parser.lua:948: in function <Interface\AddOns\Details\core\parser.lua:419>
(tail call): ?

Locals: self =

{
SetBarSpecIconSettings = defined @interface\AddOns\Details\gumps\janela_principal.lua:4285
APITopics = {
}
InitializeRunCodeWindow = defined @interface\AddOns\Details\core\windows.lua:4496
EncounterDetailsTempWindow = defined @interface\AddOns\Details_EncounterDetails\frames.lua:49
EntrarEmCombate = defined @interface\AddOns\Details\core\control.lua:313
hex = defined @interface\AddOns\Details\core\util.lua:687
BuildSpellList = defined @interface\AddOns\Details\functions\spellcache.lua:308
opened_windows = 2
RefreshAttributeTextSize = defined @interface\AddOns\Details\gumps\janela_principal.lua:7546
PotionList = {
}
EndRefresh = defined @interface\AddOns\Details\core\control.lua:1691
FechaJanelaInfo = defined @interface\AddOns\Details\gumps\janela_info.lua:380
GetMode = defined @interface\AddOns\Details\classes\classe_instancia.lua:148
SetMode = defined @interface\AddOns\Details\classes\classe_instancia.lua:2706
RestoreState_CurrentMythicDungeonRun = defined @interface\AddOns\Details\functions\profiles.lua:1478
APIVersion = 140
IsPluginEnabled = defined @interface\AddOns\Details\core\plugins.lua:58
ImportProfile = defined @interface\AddOns\Details\functions\profiles.lua:1629
SetNickname = defined @interface\AddOns\Details\Libs\NickTag-1.0\NickTag-1.0.lua:495
color_by_arena_team = true
SortKeyGroupHeal = defined @interface\AddOns\Details\classes\classe_heal.lua:125
SortKeyGroup = defined @interface\AddOns\Details\classes\classe_damage.lua:133
IsInEncounter = defined @interface\AddOns\Details\core\parser.lua:5314
Check_ZONE_CHANGED_NEW_AREA = defined @interface\AddOns\Details\core\parser.lua:4072
plugin_window_pos = {
}
gump = {
}
CaptureRefresh = defined @interface\AddOns\Details\core\parser.lua:3726
NewModule = defined @interface\AddOns\Details\Libs\AceAddon-3.0\AceAddon-3.0.lua:235
InstancesToStoreData = {
}
name_space_info = defined @interface\AddOns\Details\core\util.lua:1385
ShowDelayMsg = defined @interface\AddOns\Details\boot.lua:658
Resize = defined @interface\AddOns\Details\classes\classe_instancia.lua:1867
GetEncounterActorsName = defined @interface\AddOns\Details\functions\boss.lua:306
RequestCloudData = defined @interface\AddOns\Details\core\network.lua:721
RestauraJanela = defined @interface\AddOns\Details\classes\classe_instancia.lua:1429
default_skin_to_use = "Minimalistic"
GetOpenedWindowsAmount = defined @interface\AddOns\Details\classes\classe_instancia.lua:256
GetInstanceGroup = defined @interface\AddOns\Details\gumps\janela_principal.lua:8007
deadlog_events = 32
Dump = defined @interface\AddOns\Details\core\windows.lua:7132
OpenNewsWindow = defined @interface\AddOns\Details\gumps\janela_news.lua:9
last_instance_id = 0
_detalhes_props = {
}
atributo_energy = {
}
UnitDamageOnUnit = defined @interface\AddOns\Details\functions\api2.lua:1123
name_space_generic = defined @interface\AddOns\Det