Can someone please help me fix these errors?
"W: GPG error:
http://mirrors.coreix.net trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY CBCB082A1BB943DB
W: GPG error:
http://download.virtualbox.org vivid InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 54422A4B98AB5139
W: GPG error:
http://download.virtualbox.org trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 54422A4B98AB5139
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 464AD83D4631BBEA
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7FB8BEE0A1F196A8
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F13930B14BB9F05F
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 409C8B51283EC8CD
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E034BBB63A17F739
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6AF0E1940624A220
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D45DF2E8FC91AE7E
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5AF549300FEB6DD9
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 531EE72F4C9D234C
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3B22AB97AF1CDFA9
W: GPG error:
http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4F191A5A8844C542
W: GPG error:
http://www.bchemnet.com debian InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY C95104E509BAC46D
W: GPG error:
http://repository.spotify.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 13B00F1FD2C19886
W: GPG error:
http://deb.torproject.org trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 74A941BA219EC810
W: GPG error:
http://www.hu.freepascal.org lazarus-stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 670C48C26A11800F
W: GPG error:
http://www.hu.freepascal.org lazarus-testing Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 670C48C26A11800F
W: GPG error:
http://download.opensuse.org Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 977C43A8BA684223
W: GPG error:
http://update.swisssign.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9B6A7AEA62A25C47
W: GPG error:
http://download.webmin.com sarge Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D97A3AE911F63C51
W: GPG error:
http://update.yuuguu.com hardy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 483881FD2506E8CC
W: GPG error:
http://download.bitdefender.com bitdefender Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A373FB480EC4FE05
W: Failed to fetch
http://deb.paissad.net/dists/unstable/InRelease
W: Failed to fetch
http://ppa.launchpad.net/noneed4anic...source/Sources 404 Not Found
W: Failed to fetch
http://ppa.launchpad.net/noneed4anic...-i386/Packages 404 Not Found
W: Failed to fetch
http://ppa.launchpad.net/tombeckmann...source/Sources 404 Not Found
W: Failed to fetch
http://ppa.launchpad.net/tombeckmann...-i386/Packages 404 Not Found
W: Failed to fetch
http://deb.paissad.net/dists/unstable/Release.gpg Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...source/Sources Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...source/Sources Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...source/Sources Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...source/Sources Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...-i386/Packages Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...-i386/Packages Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...-i386/Packages Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...-i386/Packages Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...nslation-en_US Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...Translation-en Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...nslation-en_US Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...Translation-en Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...nslation-en_US Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...Translation-en Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...nslation-en_US Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://deb.paissad.net/dists/unstabl...Translation-en Unable to connect to deb.paissad.net:http: [IP: 195.135.221.134 80]
W: Failed to fetch
http://plex.r.worldssl.net/PlexMedia...-i386/Packages HttpError404
W: Some index files failed to download. They have been ignored, or old ones used instead.
W: Duplicate sources.list entry
http://us.archive.ubuntu.com/ubuntu/ trusty/universe i386 Packages (/var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_trusty_universe_binary-i386_Packages)
W: Duplicate sources.list entry
http://us.archive.ubuntu.com/ubuntu/ trusty/multiverse i386 Packages (/var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_trusty_multiverse_binary-i386_Packages)
W: Duplicate sources.list entry
http://us.archive.ubuntu.com/ubuntu/ trusty-updates/universe i386 Packages (/var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_trusty-updates_universe_binary-i386_Packages)
W: Duplicate sources.list entry
http://us.archive.ubuntu.com/ubuntu/ trusty-updates/multiverse i386 Packages (/var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_trusty-updates_multiverse_binary-i386_Packages)
W: Duplicate sources.list entry
http://archive.getdeb.net/ubuntu/ trusty-getdeb/apps i386 Packages (/var/lib/apt/lists/archive.getdeb.net_ubuntu_dists_trusty-getdeb_apps_binary-i386_Packages)
W: Duplicate sources.list entry
http://ppa.launchpad.net/webupd8team/java/ubuntu/ trusty/main i386 Packages (/var/lib/apt/lists/ppa.launchpad.net_webupd8team_java_ubuntu_dists_trusty_main_binary-i386_Packages)
W: Duplicate sources.list entry
http://repo.steampowered.com/steam/ precise/steam i386 Packages (/var/lib/apt/lists/repo.steampowered.com_steam_dists_precise_steam_binary-i386_Packages)
W: Duplicate sources.list entry
http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu/ trusty/main i386 Packages (/var/lib/apt/lists/ppa.launchpad.net_ubuntu-wine_ppa_ubuntu_dists_trusty_main_binary-i386_Packages)
sean@sean-Inspiron-N5110:~$
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