HTTP Post Request Help?

If a player inputs text into the text box (local script) and presses enter, the serverscript sends a http POST request with that input to Base64.selfscpf.com/welcome.php Then the result (body) of it is used in the authorisation header for encrypted.selfscpf.com

Local script:

local HTTPService = game:GetService("HttpService")

script.Parent.FocusLost:Connect(function(enterPressed, inputThatCausedFocusLost)
	if enterPressed then
		local input = script.Parent.Text
		wait()
		game.ReplicatedStorage.AuthEvent:FireServer(input)
	end
end)

Server script:

local HTTPService = game:GetService("HttpService")

game:GetService("ReplicatedStorage"):WaitForChild("AuthEvent").OnServerEvent:Connect(function(plr, input)
	print("INPUT: " .. tostring(input) )

	local yees = HTTPService:RequestAsync({
		Url = "http://base64.selfscpf.com/welcome.php",
		Method = "POST",
		Headers = {
			["Content-Type"] = "application/x-www-form-urlencoded"
		},
		Body = tostring(input) --the input from gui
	})

	print("-")
	for _, v in pairs(yees) do
		if typeof(v) ~= "table" then
			print("  " .. tostring(v))
		else
			for _, v in pairs(v) do
				if typeof(v) ~= "table" then
					print("         " .. tostring(v))
				end
			end
		end
	end
	print("-")

	if yees.Body == "" then
		print("BODY is nil.. how did this happen?")
	else
		print("BODY: " .. yees.Body) --debug
	end

	local encryptedSelfScpf = HTTPService:RequestAsync({
		Url = "https://encrypted.selfscpf.com",
		Method = "GET",
		Headers = {
			["Content-Type"] = "application/json",
			["Authorization"] = "Basic "..yees.Body
		},
	})
		
	print("OUTPUT: " .. encryptedSelfScpf.Body)

end)