Lubuntu - Software Updater fails to download repository info

Okay, so I have Lubuntu, the 17.04 version; and I didn't see a Lubuntu subforum so I posted it here (hope it was alright). Anyways, my problem is that the software updater is tellingme that:

Software Updater fails to download repository info.
Check your internet connection.

My connection is fine. So I was wondering what to do. I ran the sudo apt-get update, and apparently it's some 'ubuntu-zesty' making problems. I'll paste it here tomorrow if it's helpful. Help would be appreciated .

Ign:1 http://archive.ubuntu.com/ubuntu zesty InRelease                         
Ign:2 http://archive.ubuntu.com/ubuntu zesty Release                           
Ign:3 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-git/xUbuntu_17.04  InRelease
Ign:4 http://archive.ubuntu.com/ubuntu zesty/main all Packages
Get:5 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-git/xUbuntu_17.04  Release [1.025 B]
Hit:6 https://deb.opera.com/opera-stable stable InRelease
Ign:7 http://archive.ubuntu.com/ubuntu zesty/main amd64 Packages         
Get:8 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-git/xUbuntu_17.04  Release.gpg [481 B]
Ign:9 http://archive.ubuntu.com/ubuntu zesty/main i386 Packages                
Ign:8 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-git/xUbuntu_17.04  Release.gpg
Ign:10 http://archive.ubuntu.com/ubuntu zesty/main Translation-en_US
Ign:11 http://archive.ubuntu.com/ubuntu zesty/main Translation-en
Get:12 http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-git/xUbuntu_17.04  Packages [1.823 B]
Ign:13 https://mega.nz/linux/MEGAsync/xUbuntu_17.04 ./ InRelease
Ign:14 http://archive.ubuntu.com/ubuntu zesty/main all DEP-11 Metadata
Ign:15 http://archive.ubuntu.com/ubuntu zesty/main amd64 DEP-11 Metadata
Ign:16 http://archive.ubuntu.com/ubuntu zesty/main DEP-11 64x64 Icons
Ign:17 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 Packages
Ign:18 http://archive.ubuntu.com/ubuntu zesty/restricted i386 Packages
Get:19 https://mega.nz/linux/MEGAsync/xUbuntu_17.04 ./ Release [988 B]
Ign:21 http://archive.ubuntu.com/ubuntu zesty/restricted all Packages
Ign:22 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en
Ign:23 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en_US     
Ign:24 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 DEP-11 Metadata 
Ign:25 http://archive.ubuntu.com/ubuntu zesty/restricted all DEP-11 Metadata   
Ign:26 http://archive.ubuntu.com/ubuntu zesty/restricted DEP-11 64x64 Icons
Ign:27 http://archive.ubuntu.com/ubuntu zesty/multiverse i386 Packages
Ign:28 http://archive.ubuntu.com/ubuntu zesty/multiverse all Packages
Ign:29 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 Packages
Ign:30 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en
Ign:31 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en_US
Ign:32 http://archive.ubuntu.com/ubuntu zesty/multiverse all DEP-11 Metadata
Ign:33 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 DEP-11 Metadata
Ign:34 http://archive.ubuntu.com/ubuntu zesty/multiverse DEP-11 64x64 Icons
Ign:35 http://archive.ubuntu.com/ubuntu zesty/universe all Packages
Ign:36 http://archive.ubuntu.com/ubuntu zesty/universe i386 Packages
Ign:37 http://archive.ubuntu.com/ubuntu zesty/universe amd64 Packages
Ign:38 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en
Ign:39 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en_US
Ign:40 http://archive.ubuntu.com/ubuntu zesty/universe amd64 DEP-11 Metadata
Ign:41 http://archive.ubuntu.com/ubuntu zesty/universe all DEP-11 Metadata
Ign:42 http://archive.ubuntu.com/ubuntu zesty/universe DEP-11 64x64 Icons
Ign:4 http://archive.ubuntu.com/ubuntu zesty/main all Packages
Ign:7 http://archive.ubuntu.com/ubuntu zesty/main amd64 Packages
Ign:9 http://archive.ubuntu.com/ubuntu zesty/main i386 Packages
Ign:10 http://archive.ubuntu.com/ubuntu zesty/main Translation-en_US
Ign:11 http://archive.ubuntu.com/ubuntu zesty/main Translation-en
Ign:14 http://archive.ubuntu.com/ubuntu zesty/main all DEP-11 Metadata
Ign:15 http://archive.ubuntu.com/ubuntu zesty/main amd64 DEP-11 Metadata
Ign:16 http://archive.ubuntu.com/ubuntu zesty/main DEP-11 64x64 Icons
Ign:17 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 Packages
Ign:18 http://archive.ubuntu.com/ubuntu zesty/restricted i386 Packages
Ign:21 http://archive.ubuntu.com/ubuntu zesty/restricted all Packages
Ign:22 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en
Ign:23 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en_US
Ign:24 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 DEP-11 Metadata
Ign:25 http://archive.ubuntu.com/ubuntu zesty/restricted all DEP-11 Metadata
Ign:26 http://archive.ubuntu.com/ubuntu zesty/restricted DEP-11 64x64 Icons
Ign:27 http://archive.ubuntu.com/ubuntu zesty/multiverse i386 Packages
Ign:28 http://archive.ubuntu.com/ubuntu zesty/multiverse all Packages
Ign:29 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 Packages
Ign:30 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en
Ign:31 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en_US
Ign:32 http://archive.ubuntu.com/ubuntu zesty/multiverse all DEP-11 Metadata
Ign:33 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 DEP-11 Metadata
Ign:34 http://archive.ubuntu.com/ubuntu zesty/multiverse DEP-11 64x64 Icons
Ign:35 http://archive.ubuntu.com/ubuntu zesty/universe all Packages
Ign:36 http://archive.ubuntu.com/ubuntu zesty/universe i386 Packages
Ign:37 http://archive.ubuntu.com/ubuntu zesty/universe amd64 Packages
Ign:38 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en
Ign:39 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en_US
Ign:40 http://archive.ubuntu.com/ubuntu zesty/universe amd64 DEP-11 Metadata
Ign:41 http://archive.ubuntu.com/ubuntu zesty/universe all DEP-11 Metadata
Ign:42 http://archive.ubuntu.com/ubuntu zesty/universe DEP-11 64x64 Icons
Ign:4 http://archive.ubuntu.com/ubuntu zesty/main all Packages
Ign:7 http://archive.ubuntu.com/ubuntu zesty/main amd64 Packages
Ign:9 http://archive.ubuntu.com/ubuntu zesty/main i386 Packages
Ign:10 http://archive.ubuntu.com/ubuntu zesty/main Translation-en_US
Ign:11 http://archive.ubuntu.com/ubuntu zesty/main Translation-en
Ign:14 http://archive.ubuntu.com/ubuntu zesty/main all DEP-11 Metadata
Ign:15 http://archive.ubuntu.com/ubuntu zesty/main amd64 DEP-11 Metadata
Ign:16 http://archive.ubuntu.com/ubuntu zesty/main DEP-11 64x64 Icons
Ign:17 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 Packages
Ign:18 http://archive.ubuntu.com/ubuntu zesty/restricted i386 Packages
Ign:21 http://archive.ubuntu.com/ubuntu zesty/restricted all Packages
Ign:22 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en
Ign:23 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en_US
Ign:24 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 DEP-11 Metadata
Ign:25 http://archive.ubuntu.com/ubuntu zesty/restricted all DEP-11 Metadata
Ign:26 http://archive.ubuntu.com/ubuntu zesty/restricted DEP-11 64x64 Icons
Ign:27 http://archive.ubuntu.com/ubuntu zesty/multiverse i386 Packages
Ign:28 http://archive.ubuntu.com/ubuntu zesty/multiverse all Packages
Ign:29 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 Packages
Ign:30 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en
Ign:31 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en_US
Ign:32 http://archive.ubuntu.com/ubuntu zesty/multiverse all DEP-11 Metadata
Ign:33 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 DEP-11 Metadata
Ign:34 http://archive.ubuntu.com/ubuntu zesty/multiverse DEP-11 64x64 Icons
Ign:35 http://archive.ubuntu.com/ubuntu zesty/universe all Packages
Ign:36 http://archive.ubuntu.com/ubuntu zesty/universe i386 Packages
Ign:37 http://archive.ubuntu.com/ubuntu zesty/universe amd64 Packages
Ign:38 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en
Ign:39 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en_US
Ign:40 http://archive.ubuntu.com/ubuntu zesty/universe amd64 DEP-11 Metadata
Ign:41 http://archive.ubuntu.com/ubuntu zesty/universe all DEP-11 Metadata
Ign:42 http://archive.ubuntu.com/ubuntu zesty/universe DEP-11 64x64 Icons
Ign:4 http://archive.ubuntu.com/ubuntu zesty/main all Packages
Ign:7 http://archive.ubuntu.com/ubuntu zesty/main amd64 Packages
Ign:9 http://archive.ubuntu.com/ubuntu zesty/main i386 Packages
Ign:10 http://archive.ubuntu.com/ubuntu zesty/main Translation-en_US
Ign:11 http://archive.ubuntu.com/ubuntu zesty/main Translation-en
Ign:14 http://archive.ubuntu.com/ubuntu zesty/main all DEP-11 Metadata
Ign:15 http://archive.ubuntu.com/ubuntu zesty/main amd64 DEP-11 Metadata
Ign:16 http://archive.ubuntu.com/ubuntu zesty/main DEP-11 64x64 Icons
Ign:17 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 Packages
Ign:18 http://archive.ubuntu.com/ubuntu zesty/restricted i386 Packages
Ign:21 http://archive.ubuntu.com/ubuntu zesty/restricted all Packages
Ign:22 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en
Ign:23 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en_US
Ign:24 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 DEP-11 Metadata
Ign:25 http://archive.ubuntu.com/ubuntu zesty/restricted all DEP-11 Metadata
Ign:26 http://archive.ubuntu.com/ubuntu zesty/restricted DEP-11 64x64 Icons
Ign:27 http://archive.ubuntu.com/ubuntu zesty/multiverse i386 Packages
Ign:28 http://archive.ubuntu.com/ubuntu zesty/multiverse all Packages
Ign:29 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 Packages
Ign:30 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en
Ign:31 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en_US
Ign:32 http://archive.ubuntu.com/ubuntu zesty/multiverse all DEP-11 Metadata
Ign:33 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 DEP-11 Metadata
Ign:34 http://archive.ubuntu.com/ubuntu zesty/multiverse DEP-11 64x64 Icons
Ign:35 http://archive.ubuntu.com/ubuntu zesty/universe all Packages
Ign:36 http://archive.ubuntu.com/ubuntu zesty/universe i386 Packages
Ign:37 http://archive.ubuntu.com/ubuntu zesty/universe amd64 Packages
Ign:38 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en
Ign:39 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en_US
Ign:40 http://archive.ubuntu.com/ubuntu zesty/universe amd64 DEP-11 Metadata
Ign:41 http://archive.ubuntu.com/ubuntu zesty/universe all DEP-11 Metadata
Ign:42 http://archive.ubuntu.com/ubuntu zesty/universe DEP-11 64x64 Icons
Ign:4 http://archive.ubuntu.com/ubuntu zesty/main all Packages
Ign:7 http://archive.ubuntu.com/ubuntu zesty/main amd64 Packages
Ign:9 http://archive.ubuntu.com/ubuntu zesty/main i386 Packages
Ign:10 http://archive.ubuntu.com/ubuntu zesty/main Translation-en_US
Ign:11 http://archive.ubuntu.com/ubuntu zesty/main Translation-en
Ign:14 http://archive.ubuntu.com/ubuntu zesty/main all DEP-11 Metadata
Ign:15 http://archive.ubuntu.com/ubuntu zesty/main amd64 DEP-11 Metadata
Ign:16 http://archive.ubuntu.com/ubuntu zesty/main DEP-11 64x64 Icons
Ign:17 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 Packages
Ign:18 http://archive.ubuntu.com/ubuntu zesty/restricted i386 Packages
Ign:21 http://archive.ubuntu.com/ubuntu zesty/restricted all Packages
Ign:22 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en
Ign:23 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en_US
Ign:24 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 DEP-11 Metadata
Ign:25 http://archive.ubuntu.com/ubuntu zesty/restricted all DEP-11 Metadata
Ign:26 http://archive.ubuntu.com/ubuntu zesty/restricted DEP-11 64x64 Icons
Ign:27 http://archive.ubuntu.com/ubuntu zesty/multiverse i386 Packages
Ign:28 http://archive.ubuntu.com/ubuntu zesty/multiverse all Packages
Ign:29 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 Packages
Ign:30 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en
Ign:31 http://archive.ubuntu.com/ubuntu zesty/multiverse Translation-en_US
Ign:32 http://archive.ubuntu.com/ubuntu zesty/multiverse all DEP-11 Metadata
Ign:33 http://archive.ubuntu.com/ubuntu zesty/multiverse amd64 DEP-11 Metadata
Ign:34 http://archive.ubuntu.com/ubuntu zesty/multiverse DEP-11 64x64 Icons
Ign:35 http://archive.ubuntu.com/ubuntu zesty/universe all Packages
Ign:36 http://archive.ubuntu.com/ubuntu zesty/universe i386 Packages
Ign:37 http://archive.ubuntu.com/ubuntu zesty/universe amd64 Packages
Ign:38 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en
Ign:39 http://archive.ubuntu.com/ubuntu zesty/universe Translation-en_US
Ign:40 http://archive.ubuntu.com/ubuntu zesty/universe amd64 DEP-11 Metadata
Ign:41 http://archive.ubuntu.com/ubuntu zesty/universe all DEP-11 Metadata
Ign:42 http://archive.ubuntu.com/ubuntu zesty/universe DEP-11 64x64 Icons
Ign:4 http://archive.ubuntu.com/ubuntu zesty/main all Packages
Err:7 http://archive.ubuntu.com/ubuntu zesty/main amd64 Packages
  404  Not Found [IP: 91.189.88.149 80]
Ign:9 http://archive.ubuntu.com/ubuntu zesty/main i386 Packages
Ign:10 http://archive.ubuntu.com/ubuntu zesty/main Translation-en_US
Ign:11 http://archive.ubuntu.com/ubuntu zesty/main Translation-en
Ign:14 http://archive.ubuntu.com/ubuntu zesty/main all DEP-11 Metadata
Ign:15 http://archive.ubuntu.com/ubuntu zesty/main amd64 DEP-11 Metadata
Ign:16 http://archive.ubuntu.com/ubuntu zesty/main DEP-11 64x64 Icons
Ign:17 http://archive.ubuntu.com/ubuntu zesty/restricted amd64 Packages
Ign:18 http://archive.ubuntu.com/ubuntu zesty/restricted i386 Packages
Ign:21 http://archive.ubuntu.com/ubuntu zesty/restricted all Packages
Ign:22 http://archive.ubuntu.com/ubuntu zesty/restricted Translation-en
Fetched 4.317 B in 2min 24s (29 B/s)
Reading package lists... Done
W: The repository 'http://archive.ubuntu.com/ubuntu zesty Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-git/xUbuntu_17.04  Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY EDB7AED941EEDB57
W: The repository 'http://download.opensuse.org/repositories/home:/ailin_nemui:/irssi-git/xUbuntu_17.04  Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/zesty/main/binary-amd64/Packages  404  Not Found [IP: 91.189.88.149 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.

Hi, Darkmaster006, and welcome to LQ.

Lubuntu 17.04 reached end-of-life on 13 January 2018.

You should upgrade, either to the latest short-term version, 17.10, or to the latest long-term version 16.04 (note that the next long-term version, 18.04, will be out in April).

also see here:
https://en.wikipedia.org/wiki/Lubuntu#Releases
please note that Lubuntu does not always follow the same release path as Ubuntu.