This error kept popping when I was crating mats. The error count kept rising past 2k. Can you help me with this?

Message: Interface\AddOns\Ovale\dist\Power.lua:575: attempt to index a nil value
Time: 05/22/18 13:48:03
Count: 2762
Stack: Interface\AddOns\Ovale\dist\Power.lua:575: attempt to index a nil value
...rface\AddOns\TradeSkillMaster\Debug\ErrorHandler.lua:317: in function <...rface\AddOns\TradeSkillMaster\Debug\ErrorHandler.lua:300>
[C]: ?
Interface\AddOns\Ovale\dist\Power.lua:575: in function GetSpellCost' Interface\AddOns\Ovale\dist\Power.lua:652: in function ApplyPowerCost'
Interface\AddOns\Ovale\dist\Power.lua:644: in function ApplySpellAfterCast' Interface\AddOns\Ovale\dist\State.lua:67: in function ApplySpellAfterCast'
Interface\AddOns\Ovale\dist\Future.lua:969: in function ApplySpell' Interface\AddOns\Ovale\dist\Frame.lua:237: in function UpdateActionIcon'
Interface\AddOns\Ovale\dist\Frame.lua:162: in function <Interface\AddOns\Ovale\dist\Frame.lua:122>
(tail call): ?

Locals: errMsg = "Interface\AddOns\Ovale\dist\Power.lua:575: attempt to index a nil value"
isTSMError = false
tsmErrMsg = nil
AceGUI =

{
objPools = {
}
RegisterAsContainer = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:521
RegisterWidgetType = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:559
WidgetBase = {
}
RegisterAsWidget = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:537
counts = {
}
LayoutRegistry = {
}
GetLayout = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:583
GetWidgetVersion = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:613
Create = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:172
GetWidgetCount = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:607
GetNextWidgetNum = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:596
WidgetRegistry = {
}
WidgetVersions = {
}
RegisterLayout = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:573
Release = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:206
ClearFocus = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:257
WidgetContainerBase = {
}
SetFocus = defined @interface\AddOns\Altoholic\libs\AceGUI-3.0\AceGUI-3.0.lua:247
}
TSM = {
Operations = {
}
SetDefaultModuleLibraries = defined @interface\AddOns\DataStore\libs\AceAddon-3.0\AceAddon-3.0.lua:398
_author = "Sapu94"
DeleteCustomPriceSource = defined @interface\AddOns\TradeSkillMaster\CoreAPI\Prices.lua:56
EnableModule = defined @interface\AddOns\DataStore\libs\AceAddon-3.0\AceAddon-3.0.lua:363
modules = {
}
baseName = "TradeSkillMaster"
IterateEmbeds = defined @interface\AddOns\DataStore\libs\AceAddon-3.0\AceAddon-3.0.lua:473
CreateGroupTree = defined @interface\AddOns\TradeSkillMaster\GUI\TSMFrames\GroupTree.lua:291
SecureHookScript = defined @interface\AddOns\HandyNotes\Libs\AceHook-3.0\AceHook-3.0.lua:410
GetAuctionPlayer = defined @interface\AddOns\TradeSkillMaster\GUI\AuctionFrame.lua:45
RawHookScript = defined @interface\AddOns\HandyNotes\Libs\AceHook-3.0\AceHook-3.0.lua:395
_desc = "Core addon for the TradeSkillMaster suite. Does nothing without modules installed."
Printf = defined @interface\AddOns\TradeSkillMaster\CoreAPI\Modules.lua:147
SetDefaultModulePrototype = defined @interface\AddOns\DataStore\libs\AceAddon-3.0\AceAddon-3.0.lua:440
NO_SOUND_KEY = "TSM_NO_SOUND"
LDBIcon = {
}
defaultModuleState = true
IsEnabled = defined @interface\AddOns\DataStore\libs\AceAddon-3.0\AceAddon-3.0.lua:482
LOG_INFO = defined @interface\AddOns\TradeSkillMaster\Debug\Logging.lua:376
Delay = {
}
OnTSMDBShutdown = defi