Look my error plz

[xRGamingx]

Hello friends, why does this error throw me the login panel? if everything is fine 

What is the error..

 

 

 

local server ="127.0.0.1"
local base ="Proyectotg"
local user ="root"
local contra=""

function registrar(user,clave,correo)
cnn = dbConnect( "mysql", "dbname="..base..";host="..server,user,contra,"share=2")
res = dbQuery( cnn,"select count(codCuentas)as nombre from cuentas where usuario='"..user.."';")
result =  dbPoll( res, -1 )
    if(result[1]["nombre"]==0)then
		serial = getPlayerSerial(source)
		res = dbQuery( cnn,"select count(codCuentas)as nombre from cuentas where serialPlayer='"..serial.."';")
		result =  dbPoll( res, -1 )
		if(result[1]["nombre"]<100)then
		a,b,c = tostring(math.random(100,800)),tostring(math.random(100,800)),tostring(math.random(100,800))
		codigo = a..b..c
			fail= dbExec( cnn, "INSERT INTO cuentas(usuario,clave,correo,serialPlayer,codigo,cambio,can,activa) VALUES (?,?,?,?,?,?,?,?)",user,clave,correo,serial,codigo,0,0,0 )
			if(addAccount(user,clave))then
				outputChatBox("Se creo l cuenta con exito Usuario="..user.." contraseña="..clave,source)
				setElementData(source,"usuario",user)
				setElementData(source,"clave",clave)
				enviar(codigo,correo,"Codigo+De+activacion",source)
				triggerClientEvent(source,"fActivar",source)
			else
				outputChatBox("Algo a salido mal contacta a un admin",source)
			end
			
		else
			outputChatBox("Solo puedes tener 2 cuentas",source)
		end
	else
		outputChatBox("La cuenta ya esta en uso",source)
	end	 
end
addEvent("registrar",true)
addEventHandler("registrar",getRootElement(),registrar)

[ViRuZGamiing]

There's an error with the connection, without a connection you can't execute queries and such. Check your users, I think you should use 'root' as username but check users in PHPMyAdmin