[Baertram]

What is written at line 262?
Check what line 262 says, what function is tried to use there and check if you got a typo then at one of the functions
CurrencyLocation_get_string or CurrencyType_get_string or CurrencyChangeReason_get_string

Edit: Just saw line 262 is CurrencyType_get_string
use merTorchbug or ZGOO ingame and check if it exists via /tbug CurrencyType_get_string or /zgoo CurrencyType_get_string
If it returns nil that function is not existing. Either your lua file where it was defined was not loaded
or you wrote a local up in front of that function?



btw, if your funcs always end on "_get_string" you could create yourself a small local function to call the functions like this:

local funcPattern = ""%s_get_string""
    local function getStringOfValue(value, prefix)
        local funcName = string.format(funcPattern, prefix) --CurrencyType_get_string
        if _G[funcName] == nil then return end
        return _G[funcName](value)
    end
    currency_type = getStringOfValue(currencyType, "CurrencyType")

And check if you really got the correct file esoui_constants_live.lua in your live/AddOns/EsoGrinder folder!

Maybe provide us a complete zip file of the addon ESOGrinder including the current code and files and let us see what is wrong that way, or do you have it somewhere at github maybe? Always easier to see the total!