[Sharlikran]

function Initialize()
    defaultValues = {
        ["account"] = false,
        ["verbose"] = false,
        ["debug"] = false,
       }
 
    Harvest.settings = defaultValues
end
 
EVENT_MANAGER:RegisterForEvent("HarvestMap", EVENT_ADD_ON_LOADED, function (eventCode, addOnName)
    if addOnName == "HarvestMap" then
        Initialize()
        Harvest.OnLoad(eventCode, addOnName)
    end
end)

Wait, that worked!

So is it
EVENT_MANAGER:RegisterForEvent("HarvestMap", EVENT_ADD_ON_LOADED, function (eventCode, addOnName)

OR

EVENT_MANAGER:RegisterForEvent("HarvestMap", EVENT_ADD_ON_LOADED, function Harvest.OnLoad(eventCode, addOnName)

OR

EVENT_MANAGER:RegisterForEvent("HarvestMap", EVENT_ADD_ON_LOADED, function OnLoad(eventCode, addOnName)

Some of those gave me errors about an "(" expected near "Harvest...