why cant a name a team (like literally)?

script 1 (local script)

local name = script.Parent.Parent.TextBox.Text -- clan name

script.Parent.MouseButton1Down:Connect(function()
game.ReplicatedStorage.MakeClan:FireServer(name) -- putted in cos someone told me to :P
end)

script 2 (server script)

Remote = game.ReplicatedStorage.MakeClan

Remote.OnServerEvent:Connect(function(name)
	local clan = Instance.new("Team")
	clan.Parent = game:GetService("Teams")
	clan.Name = name -- .Name is not a string according to dev log
end)

you know the details, right?

Name isn't set to anything. It can't get your "local" variable from a local script. To change this, inside your local script do this

local name = script.Parent.Parent.TextBox.Text -- clan name
 
script.Parent.MouseButton1Down:Connect(function()
game.ReplicatedStorage.MakeClan:FireServer(name)
end)

and for your server script this

Remote = game.ReplicatedStorage.MakeClan
	 
Remote.OnServerEvent:Connect(function(dwasd, name)
    local clan = Instance.new("Team")
    clan.Parent = game:GetService("Teams")
    clan.Name = name -- .Name is not a string according to dev log
end)