i try to update 

	sudo apt-get update

on terminal, then, there's something error there.



W: Failed to fetch http://ppa.launchpad.net/osd-lyrics/ppa/ubuntu/dists/saucy/main/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/osd-lyrics/ppa/ubuntu/dists/saucy/main/binary-i386/Packages  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/tldm217/tahutek.net/ubuntu/dists/saucy/main/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/tldm217/tahutek.net/ubuntu/dists/saucy/main/binary-i386/Packages  404  Not Found

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


anyone can help me ? :((