Why does getting data from DataStores return this hexadecimal thing?

What I'm trying to do is to make a data system that makes player files in Replicated Storage with the data so other scripts can access the data for the player.

Code for getting data (no problem with other stuff for now):

local function dataStoreRetry(dataStoreFunction)
        local tryCount = 0
        local success = false
        local data = nil

        repeat
            tryCount = tryCount + 1

            success = pcall(function()
                data = dataStoreFunction()
            end)

            if not success then
                error("There was an error. Data may not save.")
            end
        until tryCount == dataRetries or success

        return success, data
    end

    local function getPlayerData(player)
        return dataStoreRetry(function()
            return playerData:GetAsync(player.UserId)
        end)
    end

Code for setting up the player file:

local function setupPlayerFile(player)
        print("Setting up player file...")

        local success,data = getPlayerData(player)
        print(success,data)

        --                                          All weapons:                Equipped weapons:
        --Data table structure: {Kills,Deaths,[[Weapon,Attachments] ... ],[[Primary,Attachments],[Secondary,Attachments],[Melee]}

        if success then
            if data then
                local plFile = Instance.new("Folder")
                plFile.Name = player.Name .. " plFile"
                plFile.Parent = game.ReplicatedStorage["Player Files"]

                local killCount = Instance.new("IntValue")
                killCount.Name = "Kills"
                killCount.Parent = plFile
                killCount.Value = data[1]

                local deathCount = Instance.new("IntValue")
                deathCount.Name = "Deaths"
                deathCount.Parent = plFile
                deathCount.Value = data[2]

                local kdrCount = Instance.new("NumberValue")
                kdrCount.Name = "KDR"
                kdrCount.Value = math.ceil(killCount.Value/deathCount.Value)

                local primaryValue = Instance.new("StringValue")
                primaryValue.Parent = plFile
                primaryValue.Name = "PrimaryWeapon"
                primaryValue.Value = data[4][1][1]

                local secondaryValue = Instance.new("StringValue")
                secondaryValue.Name = "SecondaryWeapon"
                secondaryValue.Parent = plFile
                secondaryValue.Value = data[4][2][1]

                local meleeValue = Instance.new("StringValue")
                meleeValue.Name = "MeleeWeapon"
                meleeValue.Parent = plFile
                meleeValue.Value = data[4][3]

                print("Setup player file.")
            end

            if not data then
                local plFile = Instance.new("Folder")
                plFile.Name = player.Name .. " plFile"
                plFile.Parent = game.ReplicatedStorage["Player Files"]

                local primaryValue = Instance.new("StringValue")
                primaryValue.Parent = plFile
                primaryValue.Name = "PrimaryWeapon"
                primaryValue.Value = "Starter AR"

                local secondaryValue = Instance.new("StringValue")
                secondaryValue.Name = "SecondaryWeapon"
                secondaryValue.Parent = plFile
                secondaryValue.Value = "Simple Pistol"

                local meleeValue = Instance.new("StringValue")
                meleeValue.Name = "MeleeWeapon"
                meleeValue.Parent = plFile
                meleeValue.Value = "Knife"

                print("Setup player file.")
            end
        else
            warn("Data was setup unsuccessfully.")
        end     
    end

(its not done yet lol)

However, when I run the module script, this happens:

Setting up player file...

true table: 0xc49213c47ee9d245

10:48:33.190 - ReplicatedStorage.PlayerStatManager:84: attempt to index nil with number

10:48:33.195 - Stack Begin

10:48:33.202 - Script 'ReplicatedStorage.PlayerStatManager', Line 84 - function setupPlayerFile

10:48:33.209 - Stack End