Resolved Site backup failing for all subscriptions

[AKTM]

Hi there,
I create daily backups for my sites using the backup manager in plesk onyx but my backup process has been failing since 3rd of July for all subscriptions on one of my servers.
The log give's the following output. I've replaced the actual domain with mydomain.tld in the output.

Warning: hosting "mydomain.tld"
Unable to backup Site Builder publishing status on site mydomain.tld (ErrorCode: 1, STDOUT:).
Error: mysql "wordpress_4"
Unable to define superuser password for mysql server on localhost
Warning: mysql "wordpress_4"
Unable to get list of db servers (ErrorCode: 1, STDOUT:).

Anyone got an idea on what exactly might be wrong here or how to resolve the issue?

Thanks!

 

[IgorG]

Please check these KB articles:
A scheduled backup was not created: Unable to define superuser password for mysql server on localhost
Scheduled backup errors: mysql "db-datb" Unable to define superuser password for mysql server on localhost