blocco degli aggiornamenti di correzione bug

E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 libsmbclient amd64 2:4.7.6+dfsg~ubuntu-0ubuntu2.4 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 samba-libs amd64 2:4.7.6+dfsg~ubuntu-0ubuntu2.4 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 libwbclient0 amd64 2:4.7.6+dfsg~ubuntu-0ubuntu2.4 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 grub-efi-amd64 amd64 2.02-2ubuntu8.7 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 grub2-common amd64 2.02-2ubuntu8.7 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 grub-efi-amd64-signed amd64 1.93.8+2.02-2ubuntu8.7 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 grub-efi-amd64-bin amd64 2.02-2ubuntu8.7 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 grub-common amd64 2.02-2ubuntu8.7 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 libunity-settings-daemon1 amd64 15.04.1+18.04.20180413-0ubuntu1.1 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 unity-settings-daemon amd64 15.04.1+18.04.20180413-0ubuntu1.1 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 ubuntu-release-upgrader-gtk all 1:18.04.28 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 ubuntu-release-upgrader-core all 1:18.04.28 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 python3-distupgrade all 1:18.04.28 is not (yet) available (404 Not Found [IP: 90.147.160.69 80]) E: http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 unattended-upgrades all 1.1ubuntu1.18.04.6 is not (yet) available (404 Not Found [IP: 90.147.160.69 80])