How do I fix this team changer script for a team change GUI?

I've never seen this many errors in somebody's code in a long long time.

But anyways the first error is on line 2 you typed MouseButton1Click with a lowercase b.

It should be like this:

script.Parent.MouseButton1Click:Connect(function()

The second error is that on line 3 you messed up on BrickColor.new. You used a single apostrophe instead of two. You also added an additional dot after .new.

It should be like this:

plr.TeamColor = BrickColor.new("Rust")

The third error is on line 5. There is not a health property inside of the player class on Roblox. Although, there is a health property inside of the players Humanoid. To fix this you would simply replace it with the following:

plr.Character.Humanoid.Health = 0 

The FOURTH error is that you are not defining what the variable plr is calling. You are going to want to insert a new line of code at the very top of the script and make it the following:

plr = game.Players.LocalPlayer

Anyways, hopefully this helped.

1) Your first error is on line 2, you put script.Parent.Mousebutton1Click, you messed up on the spelling it should be a capital B script.Parent.MouseButton1Click

2) Your second error is on line 5, doing plr.health will not get the health you would have to plr.Character.Health = 0

Here is what I have done and I tested it to make sure it works!

local plr = game.Players.LocalPlayer
NewTeamColor = "Rust"

function TeamChange()
    plr.TeamColor = BrickColor.new(NewTeamColor)
    wait(1)
    plr.Character.Humanoid.Health = 0 
end

script.Parent.MouseButton1Click:Connect(TeamChange)