How can I save the player's position in a datastore?

I have a datastore system in my game that will save various player data like their money, health, their inventory, position, ect. I store each in a table in the datastore. I'm new to datastores, so I don't understand it entirely, but when I create another variable in the table for the position (which I don't actually use position, I use the humanoidrootpart's CFrame), it gives me the error:

104: Cannot store Dictionary in data store. Data stores can only accept valid UTF-8 characters.

I've tried this with both .Position and .CFrame, but I get the same error. Is there a workaround for this?

Here's the part of my script giving me trouble:

local dataID = plr.UserId
        local equipped = {}
        local stored = {}
        local playerStatus = {}
        local equipCount = 0
        local storedCount = 0
        for i,v in pairs(plr.Character.Equipped:GetChildren()) do
            equipCount = equipCount + 1
            table.insert(equipped,equipCount,v.RealName.Value)
        end
        for i,v in pairs(plr.Inventory:GetChildren()) do
            storedCount = storedCount + 1
            table.insert(stored,storedCount,v.RealName.Value)
        end
        local data = {
            Pounds = plr.Status.Pounds.Value,
            Equipped = equipped,
            Stored = stored,
            Health = plr.Status.Health.Value,
            Position = plr.Character.HumanoidRootPart.CFrame,
        }
        local success, errormessage = pcall(function()
            playerData:SetAsync(dataID, data)
        end)

        if success then
            print("Saved")
        else
            warn(errormessage)
        end