Remote Event not passing a parameter?

I am having issues passing parameters to a remote event...

Here is the localscript:

player = script.Parent.Parent.Parent
backpack = player.Backpack

for i, v in pairs(script.Parent.Main:GetChildren()) do
    v.MouseButton1Up:connect(function () game.Workspace.ClonesRE:FireServer(v) end)
-- 'v' represents the textboxes the player is given to click on
end

Here is the Server script the event calls:

script.Parent.ClonesRE.OnServerEvent:connect(function (player, class)
-- 'v' is passed here as 'class'.  Although, it comes up as nil once it reaches here
    local backpack = player.Backpack
    --Clear backpack
    for i, v in pairs(backpack:GetChildren()) do v:remove() end
    --Enter new tools
    for i, v in pairs(class:GetChildren()) do
        if v:IsA("Tool") then
            v:Clone().Parent = backpack
        elseif v:IsA("HopperBin") then
            v:Clone().Parent = backpack
        end
    end
end)

Let me know if you need more details.

Thanks