I get '403 Forbidden' errors running sudo apt-get update Ubuntu 14.04

The error messages after the update run is:

Hit http://mirrors.digitalocean.com trusty/multiverse Translation-en
Err http://ppa.launchpad.net trusty/main amd64 Packages
403 Forbidden Hit http://mirrors.digitalocean.com trusty/restricted Translation-en
Hit http://mirrors.digitalocean.com trusty/universe Translation-en
Err http://ppa.launchpad.net trusty/main i386 Packages
403 Forbidden Err http://ppa.launchpad.net trusty/main amd64 Packages
403 Forbidden Err http://ppa.launchpad.net trusty/main i386 Packages
403 Forbidden W: Failed to fetch http://ppa.launchpad.net/ondrej/php5-5.6/ubuntu/dists/trusty/main/binary-amd64/Packages 403 Forbidden

W: Failed to fetch http://ppa.launchpad.net/ondrej/php5-5.6/ubuntu/dists/trusty/main/binary-i386/Packages 403 Forbidden

W: Failed to fetch http://ppa.launchpad.net/rwky/redis/ubuntu/dists/trusty/main/binary-amd64/Packages 403 Forbidden

W: Failed to fetch http://ppa.launchpad.net/rwky/redis/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.

I tried to clean the partial list: rm -rf /var/lib/apt/lists/partial/*

But I have the same error.

Can someone help me?

Thanks