Player1 is not a valid member of players?

I have a piece of code and I keep getting an error that says** player1 is not a valid member of players. ** basically I'm using a function to make a wall appear when the button is touched. Here is the code: srry about how some of the code is not showing like the other 3 lines*

wall = script.Parent.Parent.wall

wall.Transparency = 1

wall.CanCollide = false

local function onTouch(Button) if (game.Players.Player1:FndFirstchild("Humanoid") ~= nil) then

    wall.Transparency = 0

    wall.CanCollide = true

end

end

script.Parent.Touched:connect(onTouch)

some extra information:

The script is held inside "Button"(which is the object I'm trying to touch to make the wall appear) wall is is inside workspace and is named "wall"

All help would be appreciated