Issue Backup Manager is not working

[max2334]

Server operating system version

Ubuntu 20.04

Plesk version and microupdate number

18.0.73

Hi everyone,


since recently my Plesk Backup Manager stopped working.
When I click on the Backup Up button I get redirected to

https://vserver.de:8443/cp/home

and the following error appears:



Error:

Unable to create the remote backup: Curl error: Unable to resume an interrupted upload: (55) Failed sending data to the peer:
The last FTP request: APPE backup_2510010351.tar1
The last FTP response: 150 Using transfer connection: Connection to the FTP server has lost..


Even though I removed the FTP server settings for testing and tried to create a local backup on the server, the same error occurs.


Environment:

• Plesk Obsidian (version: [insert your exact version, e.g. 18.0.72])
• OS: Ubuntu 20.04 (planning to upgrade to 22.04 soon)
• Backup Manager previously worked without issues

What I tried:

• Removed remote FTP storage settings
• Attempted local backup only → same error
• Restarted Plesk services and server

Does anyone know how to fix this error or what might cause Backup Manager to fail like this?


Thanks in advance!

 

[Sebahat.hadzhi]

Hello, @max2334 . Could you please check for potential stuck backup tasks:

ps auxfw | grep backupmng | grep -v grep
ps auxfw | grep pmm | grep -v grep