Every boss pull since 8.2 dropped and the most recent update it has been doing this. I have the latest version of Bigwigs

thank you!
Message: Interface\AddOns\BigWigs_Plugins\Pull.lua:265: PlaySoundFile Error - Invalid fileDataID for sound.
Time: Thu Jul 4 14:46:26 2019
Count: 1
Stack: Interface\AddOns\BigWigs_Plugins\Pull.lua:265: PlaySoundFile Error - Invalid fileDataID for sound.
Interface\AddOns\BigWigs_Core\BossPrototype.lua:859: in function Engage' Interface\AddOns\BigWigs_Core\BossPrototype.lua:818: in function ?'
Interface\AddOns\BigWigs_Core\Core.lua:59: in function <Interface\AddOns\BigWigs_Core\Core.lua:54>

Locals: self =

{
isEngaged = true
RegisterMessage = defined @interface\AddOns\BigWigs\Loader.lua:899
UnregisterMessage = defined @interface\AddOns\BigWigs\Loader.lua:920
colorOptions = {
}
toggleOptions = {
}
sayCountdowns = {
}
soundOptions = {
}
otherMenu = -572
worldBoss = 81535
db = {
}
SendMessage = defined @interface\AddOns\BigWigs\Loader.lua:933
NoxiousSpit = defined @interface\AddOns\BigWigs_WarlordsOfDraenor\Draenor\Tarlna.lua:71
enabled = true
ColossalBlow = defined @interface\AddOns\BigWigs_WarlordsOfDraenor\Draenor\Tarlna.lua:49
OnBossEnable = defined @interface\AddOns\BigWigs_WarlordsOfDraenor\Draenor\Tarlna.lua:26
journalId = 1211
RegisterEvent = defined @interface\AddOns\BigWigs_Core\Core.lua:64
SavageVines = defined @interface\AddOns\BigWigs_WarlordsOfDraenor\Draenor\Tarlna.lua:63
GrowMandragora = defined @interface\AddOns\BigWigs_WarlordsOfDraenor\Draenor\Tarlna.lua:59
displayName = "Tarlna the Ageless"
OnEngage = defined @interface\AddOns\BigWigs_WarlordsOfDraenor\Draenor\Tarlna.lua:41
name = "BigWigs_Bosses_Tarlna the Ageless"
Genesis = defined @interface\AddOns\BigWigs_WarlordsOfDraenor\Draenor\Tarlna.lua:53
mapId = 543
moduleName = "Tarlna the Ageless"
UnregisterEvent = defined @interface\AddOns\BigWigs_Core\Core.lua:71
toggleDefaults = {
}
}
noEngage = nil
debug = false
dbg = defined @interface\AddOns\BigWigs_Core\BossPrototype.lua:98
updateData = defined @interface\AddOns\BigWigs_Core\BossPrototype.lua:48
difficulty = 0

I'm going to assume you've set a sound to play on boss pull in the pull settings of BigWigs. The sound you've chosen is probably being provided by an addon that hasn't been updated for patch 8.2

What sound did you set it to?

If you know which addon is providing the sound you have selected (you didn't name it) then you can ask the author to update it. They may not be aware of the change.

Your only other solution is to select a different sound, which shouldn't be too difficult since you can preview them all and see if they work by clicking the 'speaker' icon.