Issue Local Server received PUM notification email update issue

[Daveo]

Server operating system version

Debian 12.12

Plesk version and microupdate number

18.0.74 #1

Received the following email from local server this morning...

There was an issue with updating system packages and third-party components on the server. Please wait for the next automatic update or run the update manually: https://<domain>:8443/admin/pum

Reason: 2025-11-23 06:26:21 INFO: pum is called with arguments: ['--list', '--repo-info', '--json']
2025-11-23 06:26:59 ERROR: Apt cache fetch failed. Try to run the `apt-get update` command.
2025-11-23 06:26:59 ERROR:
2025-11-23 06:26:59 ERROR: Exited with returncode 1.

apt-get update completes without any issues.

# apt-get update
Hit:1 http://deb.debian.org/debian bookworm InRelease
Hit:2 http://deb.debian.org/debian bookworm-updates InRelease                                                                                                                                             
Hit:3 http://security.debian.org/debian-security bookworm-security InRelease                                                                                                                             
Hit:4 http://autoinstall.plesk.com/pool/PSA_18.0.74_17941 bookworm InRelease                                                                                                                             
Hit:5 http://autoinstall.plesk.com/PHP82_17 bookworm InRelease                                                                                                                                           
Hit:6 http://autoinstall.plesk.com/PHP83_17 bookworm InRelease                                                                                                                                           
Hit:7 http://autoinstall.plesk.com/PHP84_17 bookworm InRelease                                                                                                                                           
Hit:9 https://artifacts.elastic.co/packages/8.x/apt stable InRelease                                                                                                                                     
Hit:10 https://downloads.plex.tv/repo/deb public InRelease                                                                                                                                               
Hit:12 https://repo.imunify360.cloudlinux.com/imunify360/debian/12 bookworm InRelease                                                                                                                     
Hit:13 https://repo.alt.tuxcare.com/alt-common/deb/debian/12/stable bookworm InRelease                         
Hit:14 https://download.imunify360.com/debian/12/slot-1 bookworm InRelease               
Hit:11 https://dlm.mariadb.com/repo/mariadb-server/11.4/repo/debian bookworm InRelease
Hit:15 https://download.imunify360.com/debian/12/slot-2 bookworm InRelease
Hit:16 https://download.imunify360.com/debian/12/slot-3 bookworm InRelease
Hit:17 https://download.imunify360.com/debian/12/slot-4 bookworm InRelease
Hit:18 https://download.imunify360.com/debian/12/slot-5 bookworm InRelease
Hit:19 https://download.imunify360.com/debian/12/slot-6 bookworm InRelease
Hit:8 https://custom-downloads.mariadb.com/legacy/tools/debian bookworm InRelease
Hit:20 https://download.imunify360.com/debian/12/slot-7 bookworm InRelease
Hit:21 https://download.imunify360.com/debian/12/slot-8 bookworm InRelease
Reading package lists... Done

Also, apt update completes without any issues.

# apt update
Hit:1 http://security.debian.org/debian-security bookworm-security InRelease
Hit:2 http://deb.debian.org/debian bookworm InRelease                                                                                                                                                     
Hit:3 http://autoinstall.plesk.com/pool/PSA_18.0.74_17941 bookworm InRelease                                                                                                                             
Hit:4 http://deb.debian.org/debian bookworm-updates InRelease                                                                                                                                             
Hit:5 http://autoinstall.plesk.com/PHP82_17 bookworm InRelease                                                                                                                                           
Hit:7 http://autoinstall.plesk.com/PHP83_17 bookworm InRelease                                                                                                                                           
Hit:8 http://autoinstall.plesk.com/PHP84_17 bookworm InRelease                                                                                                                                           
Hit:9 https://artifacts.elastic.co/packages/8.x/apt stable InRelease                                                                                                                                     
Hit:10 https://downloads.plex.tv/repo/deb public InRelease                                                                                                                                               
Hit:12 https://repo.alt.tuxcare.com/alt-common/deb/debian/12/stable bookworm InRelease                                                                                                                   
Hit:13 https://repo.imunify360.cloudlinux.com/imunify360/debian/12 bookworm InRelease                           
Hit:14 https://download.imunify360.com/debian/12/slot-1 bookworm InRelease                                     
Hit:15 https://download.imunify360.com/debian/12/slot-2 bookworm InRelease
Hit:11 https://dlm.mariadb.com/repo/mariadb-server/11.4/repo/debian bookworm InRelease
Hit:16 https://download.imunify360.com/debian/12/slot-3 bookworm InRelease
Hit:17 https://download.imunify360.com/debian/12/slot-4 bookworm InRelease
Hit:18 https://download.imunify360.com/debian/12/slot-5 bookworm InRelease
Hit:6 https://custom-downloads.mariadb.com/legacy/tools/debian bookworm InRelease
Hit:19 https://download.imunify360.com/debian/12/slot-6 bookworm InRelease
Hit:20 https://download.imunify360.com/debian/12/slot-7 bookworm InRelease
Hit:21 https://download.imunify360.com/debian/12/slot-8 bookworm InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.

Going to https://<domain>:8443/admin/pum, login and click Check for updates, shows no updates available at that time.

I've attached the autoinstaller3.log file inside a zip file.

Any ideas?

 

[scsa20]

Considering you running apt update and it's fine I'd say you should be fine and just give it time. If you want to be sure you can run apt upgrade to update all of the system packages now.

If it is happening every night then you could try clearing out the package cache and see what happens afterwards but honestly it shouldn't be a problem if it only happen once thus far.