Bi\HighestBidder is actually a ObjectValue on workspace and this script is inside a text label.
Error appears on line 6
local Bidder = workspace.HighestBidder
script.Parent.Text = "Highest Bidder: Nobody"
Bidder.Changed:Connect(function()
script.Parent.Text = "Highest Bidder: "..Bidder.Value
end)

1 comment
Thanks! Worked!