Pagekite error: FAIL: localhost:8080 is down

When i try to create a tunnel to my localhost:8000 with $ pagekite.py 8080 xxxx.pagekite.me, i get a error when someone trys to connect: (FAIL: localhost:8080 is down). I created the server on my local machine with: $ php -S localhost:8080. When i try to access to the site on my local machine with http://localhost:8080, everything works perfectly.