Err http://ppa.launchpad.net trusty/main amd64 Packages                        
  403  Forbidden
Err http://ppa.launchpad.net trusty/main i386 Packages                         
  403  Forbidden
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W: Failed to fetch http://ppa.launchpad.net/accessibility-dev/ppa/ubuntu/dists/trusty/main/binary-amd64/Packages  403  Forbidden

W: Failed to fetch http://ppa.launchpad.net/accessibility-dev/ppa/ubuntu/dists/trusty/main/binary-i386/Packages  403  Forbidden

E: Some index files failed to download. They have been ignored, or old ones used instead.