attempt to index nil with 'Value'?

wait(5)
while true do
	if script.Parent.Parent.SelectedSeed ~= nil then
		wait()
		local plr = game.Players:FindFirstChild(game.Workspace:FindFirstChild("PlayerName").Value)
		local seed = plr:FindFirstChild("Plants"):FindFirstChild(script.Parent.Parent.SelectedSeed.Value)
		script.Parent.Text = "You Own "..seed.Value
	end
end

i know this is a pretty bad script but for some reason im getting this error: 18:51:33.001 - Workspace.Tycoon.BioGarden.Tablet1.Ekran.Menu.Info.Count.Script:7: attempt to index nil with 'Value'

You are already using .Value in the variable so what you are effectively doing is seed.Value.Value so it errors with nil since .Value is not a child of .Value. Just remove one of the .Value's and it will work.

I found you error:

In your :FindFirstChild(), you are looking for SelectedSeed.Value, which isn't a thing. You want to get rid of the .Value in line 6.