Keep getting ProvisionedThroughputExceeded, but not exceeding throttle limit?

This is a leveling script, it increases a player's level when they exceed the needed 'XP'. I keep getting the same error, even though I'm not exceeding the throttle limit. Here's the script:

local ods = game:GetService("DataStoreService"):GetOrderedDataStore("Level")
local ods2 = game:GetService("DataStoreService"):GetOrderedDataStore("XP")
while true do
	local plays = game.Players:GetChildren()
	wait(#plays)
	local plrs = game.Players:GetChildren()
	for _, i in pairs(plrs) do
		if i:FindFirstChild("CanSave") then
			if i.CanSave.Value == true then
				local val1 = i.Level.Value
				local val2 = i.XP.Value
				local num = nil
				if val1 == 1 then
					num = 300
				else
					num = math.floor(300*(1.5)^val1)	
				end
				if val2 >= num then
					ods:IncrementAsync(i.UserId,1) ---This is the line that errors, claiming 'provisionedThroughputExceeded'
					i.Level.Value = i.Level.Value + 1
					local rem = i.Level.Value
					local gui = game.Lighting.NewLev:Clone()
					gui.Parent = i.PlayerGui
					if math.fmod(rem,2) == 0 then
					local gui = game.Lighting.New:Clone()
					gui.Parent = i.PlayerGui
					end
				end
			end
		end
	end
end