Addon Howmany with error since new patch

[Grungra]

Greets, having a problem with addon that got hit with the new api from patch. It's called howmany and you can find it in curseforge at:

https://www.curseforge.com/wow/addons/howmany

it gives the following error now when you collect any of the garrison resources in WoD or the resources for legion.

4x HowMany\Modules\HMLoot.lua:592: attempt to call global 'GetCurrencyListSize' (a nil value)
[string "@HowMany\Modules\HMLoot.lua"]:592: in function <HowMany\Modules\HMLoot.lua:584>
[string "@HowMany\Modules\HMLoot.lua"]:879: in function <HowMany\Modules\HMLoot.lua:871>
[string "@HowMany\Modules\HMLoot.lua"]:899: in function `filterFunc'
[string "@Prat-3.0-3.9.0\services\chatsections.lua"]:49: in function <Prat-3.0\services\chatsections.lua:41>
[string "@Prat-3.0-3.9.0\services\chatsections.lua"]:340: in function `SplitChatMessage'
[string "@Prat-3.0-3.9.0\addon\addon.lua"]:639: in function <Prat-3.0\addon\addon.lua:613>
[string "=(tail call)"]: ?
[string "@FrameXML\ChatFrame.lua"]:3031: in function `ChatFrame_OnEvent'
[string "*:OnEvent"]:1: in function <[string "*:OnEvent"]:1>

Locals:
parserEvent = <table> {
moneyString = "|cffffffff|Hcurrency:824:0|h[Garrison Resources]|h|r"
isMoney = false
amount = "16"
recipientUnit = "player"
eventType = "currency"
OriginalText = "You receive currency: |cffffffff|Hcurrency:824:0|h[Garrison Resources]|h|r x16."
}
idx = nil
wasCurrency = false
(*temporary) = 1
(*temporary) = nil
(*temporary) = "attempt to call global 'GetCurrencyListSize' (a nil value)"
mod = <table> {
SetDefaultModuleLibraries = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:367
Enable = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:294
NewModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:235
EnableModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:332
modules = <table> {
}
CancelTimer = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:147
IterateEmbeds = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:442
defaultModuleLibraries = <table> {
}
TimeLeft = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:172
ScheduleRepeatingTimer = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:129
CancelAllTimers = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:160
SetDefaultModulePrototype = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:409
GetOptions = <function> defined @HowMany\Modules\HMLoot.lua:989
name = "HowMany_HMLoot"
IsEnabled = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:451
orderedModules = <table> {
}
ScheduleTimer = <function> defined @Ace3\AceTimer-3.0\AceTimer-3.0.lua:94
DisableModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:350
RegisterMessage = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:90
UnregisterMessage = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:153
defaultModuleState = true
canBeDisabled = true
baseName = "HowMany"
BAG_UPDATE_DELAYED = <function> defined @HowMany\Modules\HMLoot.lua:534
IsModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:217
db = <table> {
}
SetDefaultModuleState = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:387
OnInitialize = <function> defined @HowMany\Modules\HMLoot.lua:973
OnDisable = <function> defined @HowMany\Modules\HMLoot.lua:959
SetEnabledState = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:424
OnEnable = <function> defined @HowMany\Modules\HMLoot.lua:925
enabledState = true
ItemTimerCallback = <function> defined @HowMany\Modules\HMLoot.lua:475
RegisterEvent = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:90
UnregisterAllMessages = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:174
Disable = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:314
UnregisterAllEvents = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:174
SendMessage = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:59
IterateModules = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:437
Info = <function> defined @HowMany\Modules\HMLoot.lua:984
GetModule = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:210
GetName = <function> defined @Ace3\AceAddon-3.0\AceAddon-3.0.lua:279
moduleName = "HMLoot"
UnregisterEvent = <function> defined @Ace3\CallbackHandler-1.0\CallbackHandler-1.0.lua:153
modName = "HMLoot"
}
string_find = <function> defined =[C]:-1
ItemHash = <table> {
}
L = <table> {
Show Bags Total = "Show Bags Total"
Combine Similar Loot Messages = "Combine Similar Loot Message


The function that fails is this:
--------------------------------------------------------------------------------------------

local function HandleCurrency(parserEvent)

if ( not mod.db.profile.trackCurrency ) then return end

local idx, wasCurrency
wasCurrency = false
-- Debug
-- DEFAULT_CHAT_FRAME:AddMessage( parserEvent.moneyString );
for idx = 1, GetCurrencyListSize() do
local cname, ccount, citemID

cname, _, _, _, _, ccount, _, _, citemID = GetCurrencyListInfo(idx)
if cname ~= "Legion" and ccount ~= 0 then
local matchEnd = string_find(parserEvent.moneyString, cname)

-- Debug
-- DEFAULT_CHAT_FRAME:AddMessage( cname .. " " .. tostring(ccount) );

-- Check if a match was found.
if (matchEnd) then

ItemHash[parserEvent.moneyString] = nil -- We don't have to worry about the timer any more, so just forget it.
parserEven*****ssageDelayed = false -- we're not combining this message. Just let it go through
parserEvent.resultString = " " .. L["You now have"] .. " " .. ccount .. "."

wasCurrency = true -- don't bother to search any more
break
end
end
end

--------------------------------------------------------------------------

Maybe someone with the know how, can fix the function to fix the error.

Thanks.