Client (playerName) triggered serverside event

[Pickanothername]

Error: https://imgur.com/JjjGaVl

Hello, this error pops up in the login panel, but it does not provide the entire panel panel. Please correct any mistakes.
Where is wrong code?

c.lua
 

function auth(username, password)
	if not username then
		responseServerValue(source, "Błąd logowania. Kod błędu [ERR_A1]")
		return
	end
	if not password then
		responseServerValue(source, "Błąd logowania. Kod błędu [ERR_A2]")
		return
	end

	local q = exports.["pystories-db"]:mysql_query("SELECT * FROM pystories_users WHERE login=? AND password=?", username, md5(password))
	if #q > 1 then -- Znaleziono więcej niż 1 usera o podanej kombinacji loginu i hasła
		responseServerValue(source, "Błąd logowania. Kod błędu [ERR_A3]")

	elseif #q < 1 then -- Nie znaleziono żadnego usera o podanej kombinacji loginu i hasła
		responseServerValue(source, "Taki użytkownik nie istnieje")
	
	else -- Jest tylko jeden user! Hura!
		local player = source
		if not player then return end

		setElementData(player, "player:sid", q[1].sid)

		if string.len(q[1].imie) < 3 then
			triggerClientEvent(player, "openAcc", player)
			return 
		end
		

		local pos = split(q[1].position, ",")
		spawnPlayer(player, pos[1], pos[2], pos[3], pos[4], q[1].skin, pos[5], pos[6])
		setCameraTarget(player, player)
		setElementHealth(player, q[1].health)

		-- Tutaj reszta ladowania się
		setElementData(player, "user:imie", q[1].imie)
		setElementData(player, "user:nazwisko", q[1].nazwisko)
		setElementData(player, "user:plec", q[1].plec)


		triggerClientEvent(player, "destroyLogin", player)
	end
end
addEvent("auth", true)
addEventHandler("auth", getRootElement(), auth)

 

[IIYAMA]

Double post to work around a topic lock.