apt update has two failed index files and I can't find anything on the web about what to do

I'm updating one of my systems and I get an error which I don't know how to fix or what the problem is. Here is the error: E: Failed to fetch http://the.earth.li/debian/dists/stretch-updates/main/binary-i386/Packages 404 Not Found [IP: 46.43.34.31 80] E: Failed to fetch http://the.earth.li/debian/dists/stretch/main/binary-i386/Packages 404 Not Found [IP: 46.43.34.31 80] E: Some index files failed to download. They have been ignored, or old ones used instead. --------------- root /home/kristjan # apt update Hit:1 http://ftp.debian.org/debian stretch-backports InRelease Hit:2 http://security.debian.org/debian-security stretch/updates InRelease Hit:3 http://download.virtualbox.org/virtualbox/debian stretch InRelease Hit:4 https://download.mono-project.com/repo/debian stable-stretch InRelease Hit:5 http://www.deb-multimedia.org stretch InRelease Hit:6 http://repo.steampowered.com/steam precise InRelease Hit:7 https://deb.torproject.org/torproject.org stretch InRelease Ign:8 http://the.earth.li/debian stretch InRelease Get:9 http://the.earth.li/debian stretch-updates InRelease [91.0 kB] Get:10 http://the.earth.li/debian stretch Release [118 kB] Get:11 http://the.earth.li/debian stretch-updates/main Sources.diff/Index [8,608 B] Get:12 http://the.earth.li/debian stretch-updates/main i386 Packages.diff/Index [8,608 B] Get:12 http://the.earth.li/debian stretch-updates/main i386 Packages.diff/Index [8,608 B] Ign:12 http://the.earth.li/debian stretch-updates/main i386 Packages.diff/Index Get:15 http://the.earth.li/debian stretch Release.gpg [2,434 B] Get:16 http://the.earth.li/debian stretch-updates/main Sources 2019-02-21-2009.35.pdiff [10.2 kB] Get:17 http://the.earth.li/debian stretch-updates/main Sources 2019-03-27-2010.32.pdiff [471 B] Get:18 http://the.earth.li/debian stretch-updates/main Sources 2019-03-30-2008.27.pdiff [726 B] Get:19 http://the.earth.li/debian stretch-updates/main amd64 Packages 2019-02-21-2009.35.pdiff [4,149 B] Get:20 http://the.earth.li/debian stretch-updates/main amd64 Packages 2019-03-27-2010.32.pdiff [531 B] Get:21 http://the.earth.li/debian stretch-updates/main amd64 Packages 2019-03-30-2008.27.pdiff [1,599 B] Get:22 http://the.earth.li/debian stretch-updates/main Translation-en 2019-02-21-2009.35.pdiff [5,483 B] Get:18 http://the.earth.li/debian stretch-updates/main Sources 2019-03-30-2008.27.pdiff [726 B] Get:22 http://the.earth.li/debian stretch-updates/main Translation-en 2019-02-21-2009.35.pdiff [5,483 B] Get:21 http://the.earth.li/debian stretch-updates/main amd64 Packages 2019-03-30-2008.27.pdiff [1,599 B] Ign:23 http://the.earth.li/debian stretch-updates/main i386 Packages Get:24 http://the.earth.li/debian stretch/non-free Sources [79.4 kB] Get:25 http://the.earth.li/debian stretch/main Sources [6,746 kB] Get:26 http://the.earth.li/debian stretch/main i386 Packages [7,064 kB] Get:26 http://the.earth.li/debian stretch/main i386 Packages [7,064 kB] Get:26 http://the.earth.li/debian stretch/main i386 Packages [7,064 kB] Get:26 http://the.earth.li/debian stretch/main i386 Packages [7,064 kB] Ign:26 http://the.earth.li/debian stretch/main i386 Packages Ign:31 http://the.earth.li/debian stretch/non-free i386 Packages Ign:23 http://the.earth.li/debian stretch-updates/main i386 Packages Ign:26 http://the.earth.li/debian stretch/main i386 Packages Ign:31 http://the.earth.li/debian stretch/non-free i386 Packages Err:23 http://the.earth.li/debian stretch-updates/main i386 Packages 404 Not Found [IP: 46.43.34.31 80] Ign:26 http://the.earth.li/debian stretch/main i386 Packages Ign:31 http://the.earth.li/debian stretch/non-free i386 Packages Err:26 http://the.earth.li/debian stretch/main i386 Packages 404 Not Found [IP: 46.43.34.31 80] Ign:31 http://the.earth.li/debian stretch/non-free i386 Packages Fetched 235 kB in 1s (125 kB/s) Reading package lists... Done E: Failed to fetch http://the.earth.li/debian/dists/stretch-updates/main/binary-i386/Packages 404 Not Found [IP: 46.43.34.31 80] E: Failed to fetch http://the.earth.li/debian/dists/stretch/main/binary-i386/Packages 404 Not Found [IP: 46.43.34.31 80] E: Some index files failed to download. They have been ignored, or old ones used instead. Here is the system: root /home/kristjan # cat /etc/os-release PRETTY_NAME="Debian GNU/Linux 9 (stretch)" NAME="Debian GNU/Linux" VERSION_ID="9" VERSION="9 (stretch)" ID=debian HOME_URL="https://www.debian.org/ " SUPPORT_URL="https://www.debian.org/support " BUG_REPORT_URL="https://bugs.debian.org/ " Here is sources list: root /home/kristjan # cat /etc/apt/sources.list # #deb cdrom:[Debian GNU/Linux 9.4.0 _S #deb cdrom:[Debian GNU/Linux 9.4.0 _S deb http://www.deb-multimedia.org stretch main non-free deb http://the.earth.li/debian/ stretch main non-free deb-src http://the.earth.li/debian/ stretch main non-free deb http://security.debian.org/debian-security stretch/updates main contrib non-free deb-src http://security.debian.org/debian-security stretch/updates main contrib non-free # stretch-updates, previously known as 'volatile' deb http://the.earth.li/debian/ stretch-updates main contrib non-free deb-src http://the.earth.li/debian/ stretch-updates main contrib non-free # Virtualbox Oracle deb http://download.virtualbox.org/virtualbox/debian stretch contrib #Tor###########################97 deb https://deb.torproject.org/torproject.org stretch main deb-src https://deb.torproject.org/torproject.org stretch main # For the stable version. #deb tor://sdscoq7snqtznauu.onion/torproject.org stretch main ########################### Backports testingittt #deb http://ftp.debian.org/debian stretch-backports main **What is the problem here and how can I fix it?** UPDATE: I have **two servers both running Debian Stretch 9.9 and with the same debian servers for packages and updates but I can only update one of them**, this one gives me this error: ~↓↓$↓↓ apt update Hit:1 http://www.deb-multimedia.org stretch InRelease Ign:2 http://the.earth.li/debian stretch InRelease Hit:3 http://ppa.launchpad.net/linuxuprising/java/ubuntu bionic InRelease Get:4 http://security.debian.org/debian-security stretch/updates InRelease [94.3 kB] Hit:6 http://download.virtualbox.org/virtualbox/debian stretch InRelease Hit:7 http://ftp.debian.org/debian stretch-backports InRelease Get:5 http://the.earth.li/debian stretch-updates InRelease [91.0 kB] Hit:9 http://repo.mysql.com/apt/debian stretch InRelease Hit:10 https://packages.microsoft.com/debian/9/prod stretch InRelease Hit:11 https://packages.microsoft.com/repos/vscode stable InRelease Get:8 http://the.earth.li/debian stretch Release [118 kB] Hit:12 https://deb.torproject.org/torproject.org stretch InRelease Get:13 http://security.debian.org/debian-security stretch/updates/main Sources [205 kB] Get:14 http://the.earth.li/debian stretch Release.gpg [2,434 B] Get:15 http://security.debian.org/debian-security stretch/updates/main amd64 Packages [492 kB] Get:16 http://the.earth.li/debian stretch-updates/main Sources [13.1 kB] Get:17 http://the.earth.li/debian stretch-updates/main amd64 Packages [27.2 kB] Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [27.2 kB] Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [27.2 kB] Hit:21 http://repo.steampowered.com/steam precise InRelease Ign:18 http://the.earth.li/debian stretch-updates/main i386 Packages Ign:22 http://the.earth.li/debian stretch-updates/main i386 Contents (deb) Get:23 http://security.debian.org/debian-security stretch/updates/main i386 Packages [494 kB] Ign:18 http://the.earth.li/debian stretch-updates/main i386 Packages Hit:24 https://download.mono-project.com/repo/debian stable-stretch InRelease Ign:25 https://apt.jenslody.de/stable stretch InRelease Err:22 http://the.earth.li/debian stretch-updates/main i386 Contents (deb) 404 Not Found [IP: 46.43.34.31 80] Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [169 kB] Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [169 kB] Hit:28 https://apt.jenslody.de/stable stretch Release Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [169 kB] Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [169 kB] Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [169 kB] Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [169 kB] Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [169 kB] Get:18 http://the.earth.li/debian stretch-updates/main i386 Packages [169 kB] Ign:18 http://the.earth.li/debian stretch-updates/main i386 Packages Ign:36 http://the.earth.li/debian stretch/main i386 Packages Get:37 http://the.earth.li/debian stretch/main i386 Contents (deb) [31.3 MB] Get:38 http://the.earth.li/debian stretch/main amd64 Contents (deb) [31.4 MB] Get:39 http://the.earth.li/debian stretch/non-free amd64 Packages [78.3 kB] Ign:40 http://the.earth.li/debian stretch/non-free i386 Packages Get:41 http://the.earth.li/debian stretch/non-free Translation-en [80.3 kB] Get:42 http://the.earth.li/debian stretch/non-free amd64 DEP-11 Metadata [7,180 B] Get:43 http://the.earth.li/debian stretch/non-free DEP-11 64x64 Icons [30.0 kB] Get:44 http://the.earth.li/debian stretch/non-free DEP-11 128x128 Icons [85.2 kB] Get:45 http://the.earth.li/debian stretch/non-free amd64 Contents (deb) [809 kB] Get:46 http://the.earth.li/debian stretch/non-free i386 Contents (deb) [750 kB] Ign:36 http://the.earth.li/debian stretch/main i386 Packages Ign:40 http://the.earth.li/debian stretch/non-free i386 Packages Ign:36 http://the.earth.li/debian stretch/main i386 Packages Ign:40 http://the.earth.li/debian stretch/non-free i386 Packages Err:36 http://the.earth.li/debian stretch/main i386 Packages 404 Not Found [IP: 46.43.34.31 80] Ign:40 http://the.earth.li/debian stretch/non-free i386 Packages Fetched 44.7 MB in 13s (3,223 kB/s) Reading package lists... Done E: Failed to fetch http://the.earth.li/debian/dists/stretch-updates/main/Contents-i386 404 Not Found [IP: 46.43.34.31 80] E: Failed to fetch http://the.earth.li/debian/dists/stretch/main/binary-i386/Packages 404 Not Found [IP: 46.43.34.31 80] E: Some index files failed to download. They have been ignored, or old ones used instead. Here are other list files just for detail: ~↓↓$↓↓ ls -asil /etc/apt/sources.list.d/ total 36 1175229 4 drwxr-xr-x 2 root root 4096 May 18 09:52 . 1175056 4 drwxr-xr-x 6 root root 4096 May 23 01:54 .. 1178126 4 -rw-r--r-- 1 root root 67 May 2 08:18 linuxuprising-java.list 1178021 4 -rw-r--r-- 1 root root 75 Jan 17 2018 microsoft-prod.list 1177218 4 -rw-r--r-- 1 root root 70 Jul 12 2018 mono-official-stable.list 1176353 4 -rw-r--r-- 1 root root 712 May 13 06:23 mysql.list 1178155 4 -rw-r--r-- 1 root root 148 Jul 24 2018 steam.list 1178030 4 -rw-r--r-- 1 root root 64 Jul 21 2018 stretch-backports.list 1176782 4 -rw-r--r-- 1 root root 73 May 18 09:42 vscode.list Here is sources.list on the other server: deb http://www.deb-multimedia.org stretch main non-free deb http://the.earth.li/debian/ stretch main non-free deb-src http://the.earth.li/debian/ stretch main non-free deb http://security.debian.org/debian-security stretch/updates main contrib non-free deb-src http://security.debian.org/debian-security stretch/updates main contrib non-free # stretch-updates, previously known as 'volatile' deb http://the.earth.li/debian/ stretch-updates main contrib non-free deb-src http://the.earth.li/debian/ stretch-updates main contrib non-free # Virtualbox Oracle deb http://download.virtualbox.org/virtualbox/debian stretch contrib