Error 404 on around 11 PPAs

[aureliuspublius]

Having already tried sudo apt clean, autoremove, --fix-missing and other such commands, as well as checking the sources.list file for clues, I am still unable to figure out how fix the following issue on my mother's laptop. I realize I probably just need to delete those troublesome packages, but I am not entirely sure how.

Full output of sudo apt upgrade:

sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following NEW packages will be installed:
fonts-comic-neue
The following packages have been kept back:
gnome-software-common
The following packages will be upgraded:
fonts-croscore-config-zorin-os fonts-inter-zorin-os fonts-jetbrains-mono-zorin-os fonts-michroma-zorin-os fonts-roboto-mono-zorin-os fonts-sans-forgetica-zorin-os fonts-space-grotesk-zorin-os fonts-zorin-os-core
gnome-shell-extension-x11gestures zorin-icon-themes
10 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
Need to get 49.4 MB/49.6 MB of archives.
After this operation, 290 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Ign:1 Index of /zorinos/stable/ubuntu focal/main amd64 gnome-shell-extension-x11gestures all 14
Ign:2 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-croscore-config-zorin-os all 16.1.1
Ign:3 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-inter-zorin-os all 16.1.1
Ign:4 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-jetbrains-mono-zorin-os all 16.1.1
Ign:5 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-michroma-zorin-os all 16.1.1
Ign:6 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-roboto-mono-zorin-os all 16.1.1
Ign:7 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-sans-forgetica-zorin-os all 16.1.1
Ign:8 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-space-grotesk-zorin-os all 16.1.1
Ign:9 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-zorin-os-core all 16.1.1
Ign:10 Index of /zorinos/stable/ubuntu focal/main amd64 zorin-icon-themes all 2.9.10
Err:1 Index of /zorinos/stable/ubuntu focal/main amd64 gnome-shell-extension-x11gestures all 14
404 Not Found [IP: 185.125.190.52 80]
Err:2 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-croscore-config-zorin-os all 16.1.1
404 Not Found [IP: 185.125.190.52 80]
Err:3 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-inter-zorin-os all 16.1.1
404 Not Found [IP: 185.125.190.52 80]
Err:4 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-jetbrains-mono-zorin-os all 16.1.1
404 Not Found [IP: 185.125.190.52 80]
Err:5 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-michroma-zorin-os all 16.1.1
404 Not Found [IP: 185.125.190.52 80]
Err:6 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-roboto-mono-zorin-os all 16.1.1
404 Not Found [IP: 185.125.190.52 80]
Err:7 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-sans-forgetica-zorin-os all 16.1.1
404 Not Found [IP: 185.125.190.52 80]
Err:8 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-space-grotesk-zorin-os all 16.1.1
404 Not Found [IP: 185.125.190.52 80]
Err:9 Index of /zorinos/stable/ubuntu focal/main amd64 fonts-zorin-os-core all 16.1.1
404 Not Found [IP: 185.125.190.52 80]
Err:10 Index of /zorinos/stable/ubuntu focal/main amd64 zorin-icon-themes all 2.9.10
404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/g/gnome-shell-extension-x11gestures/gnome-shell-extension-x11gestures_14_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/z/zorin-os-fonts/fonts-croscore-config-zorin-os_16.1.1_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/z/zorin-os-fonts/fonts-inter-zorin-os_16.1.1_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/z/zorin-os-fonts/fonts-jetbrains-mono-zorin-os_16.1.1_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/z/zorin-os-fonts/fonts-michroma-zorin-os_16.1.1_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/z/zorin-os-fonts/fonts-roboto-mono-zorin-os_16.1.1_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/z/zorin-os-fonts/fonts-sans-forgetica-zorin-os_16.1.1_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/z/zorin-os-fonts/fonts-space-grotesk-zorin-os_16.1.1_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/z/zorin-os-fonts/fonts-zorin-os-core_16.1.1_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Failed to fetch http://ppa.launchpad.net/zorinos/stable/ubuntu/pool/main/z/zorin-icon-themes/zorin-icon-themes_2.9.10_all.deb 404 Not Found [IP: 185.125.190.52 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

[Ocka]

Gday @aureliuspublius , In the "Software Updater" app,
Click settings at the bottom,
click the TAB " Zorin Software"
Change the download server.
Click the drop-down arrow & select "Other"
Change to your local area & click " Select best server"
restart pc & retry the downloads,
Hope this helps.

[aureliuspublius]

Same output as before, I'm afraid.

[Ocka]

Ok Next
As you may know 404 is as it says " failed to connect",

First open "Software & Updates" ( same as settings in software Updater)
Make sure you have all ticked as per photo's ( most should be set as default. Ignore teamviewer, that's my app )

Again you may try changing back to original server or leave for now,( maybe a UK server as the IP is based in UK ) keep it in the back of your mind.

Another issue maybe try with the firewall Disabled
Just for updates,
Check the internet connection ( refresh your connection ( turn off pc & modem, for 3-5min's & disconnect Ethernet cables if used)
If using wifi, try cable for internet.
If it's a dual boot setup, also open windows & run updates ( as it may have thing to change to help with dual OS )

Hope something there may help,

[aureliuspublius]

Not dual booting, internet connection is perfect, all relevant Zorin Software boxes ticked, firewall not on. Authentication:

Other software:

Problem persisted until I unchecked the two canonical partners repos you see there. But another thing remains:

What to do with this gnome-software-common, I wonder?

[aureliuspublius]

Update: I tried with

sudo apt install --only-upgrade gnome-software-common

Which seems to have solved that particular issue.

I suppose everything is good now.

[Ocka]

Yes sometimes you have to try another time of day & sometimes changing server.
Good to see it's working.