command line - Install Popcorn-Time on Ubuntu 14.04

Hi guys I found a guide for install PopCorn Time on my notebook via ppa but entering the first command I have this error..can someone help me? I diden't found anything on web for the error!

sudo add-apt-repository ppa:webupd8team/popcorntime

sudo apt-get update

sudo apt-get install popcorn-time

on first command I obtain

Cannot add PPA: 'ppa:webupd8team/popcorntime'.
Please check that the PPA name or format is correct.

The PPA does not work, so I downloaded the x64 .tar.xz. 32bit version here.