The shark won't receive the tool?

The following code is a server script and there are no errors in the output. The following code will give the players a tool in replicated storage and it doesn't seem to work.

local plrs = game.Players:GetPlayers()
local teams = game:GetService("Teams")
local shark = teams:WaitForChild("Shark")
local tool = game:GetService("ReplicatedStorage"):WaitForChild("Shark Tagger")

while wait() do
	if plrs.TeamColor == shark.TeamColor then
		tool:Clone().Parent = plrs.Backpack
	end
end

One idea.

Consider changing the following:

local plrs = game.Players:GetPlayers()
local teams = game:GetService("Teams")
local shark = teams:WaitForChild("Shark")
local tool = game:GetService("ReplicatedStorage"):WaitForChild("Shark Tagger")

while wait() do
    if plrs.TeamColor == shark.TeamColor then -- shark.TeamColor isn't a valid color. Try changing shark to a similar color.
        tool:Clone().Parent = plrs.Backpack
    end
end

I hope it will work! :D