Install Updates could not fetch the package cache information lists.

[carlos.griffa]

I have launched the automatic update and yesterday it returned the following error.
Who can help ?

============ Log ===========

Hit:1 http://linux.teamviewer.com/deb stable InRelease
Hit:2 http://security.ubuntu.com/ubuntu focal-security InRelease
Get:3 http://ppa.launchpad.net/kicad/kicad-5.1...ses/ubuntu focal InRelease [18,1 kB]
Hit:4 http://us.archive.ubuntu.com/ubuntu focal InRelease
Hit:5 http://archive.canonical.com/ubuntu focal InRelease
Hit:6 http://us.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:7 http://us.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:8 http://repo.linuxliteos.com/linuxlite emerald InRelease
Reading package lists...
E: Repository 'http://ppa.launchpad.net/kicad/kicad-5.1...ses/ubuntu focal InRelease' changed its 'Label' value from 'WIP: Don't use yet !! PPA for KiCad: 5.1 releases' to 'PPA for KiCad: 5.1 releases'

[Artim]

Under the Other Software tab in software installer, UNCHECK the source "launchpad.net/kincad-5.1-releases/ubuntu", reload and update again. It should work after that.

[carlos.griffa]

It worked well following your tip!
I've learned something new.
Thanks!