why doesnt datastore work but other datastores in the same exact format does?

Im trying to make a datastore. I know that this script works, but when i go to make it save a different value, it errors out and i have no idea. Why?

local currencyName = "Company1PromotionCurrent"

local DataStore = game:GetService("DataStoreService"):GetDataStore("Company1PromotionCurrent")
game.Players.PlayerAdded:Connect(function(player)
    wait(1)
    local currency = player:WaitForChild("PlayerValues"):WaitForChild("OtherValues"):WaitForChild("CompanyValues"):WaitForChild("PromotionCurrent").Value
    local ID = currencyName.."-"..player.UserId
    local savedData = nil
    pcall(function()
        savedData = DataStore:GetAsync(ID)
    end)
    if savedData ~= nil then
        currency.Value = savedData
    end
end)

game.Players.PlayerRemoving:Connect(function(player)
    local ID = currencyName.."-"..player.UserId
    DataStore:SetAsync(ID,player.PlayerValues.OtherValues.CompanyValues:FindFirstChild("PromotionCurrent").Value)
end)