After updating to the latest version of Virtualmin 7.7-3, backups of virtual servers do not work

SYSTEM INFORMATION
OS type and version Debian 11
Webmin version 2.021
Virtualmin version 7.7-3
Related packages SUGGESTED

Three days ago, I updated Virtualmin and Webmin to the latest versions. Since then, backups of virtual servers are not being generated. In the backup logs, there is only one error: “Copying records in DNS domain … … domain not found!”. The DNS zones are managed by Cloudmin Connect on an external server. This is a significant issue for me because I have many other servers that I don’t want to update until this problem is resolved. Thank you in advance for your help.

Latest backup log
Testing backup destination /home/xxx0/incremental/28072023 on SSH server xxx.xxxxxxx.xx …
… done

Creating backup for virtual server xxx.xxxxxx.xx …
Copying virtual server configuration …
… done

Backing up Cron jobs ..
.. none defined.

Copying records in DNS domain ..
.. domain not found!

Saving mail aliases ..
.. done

Saving mail and FTP users ..
.. done

Backing up mail and FTP user Cron jobs ..
.. none to backup

Copying Apache virtual host configuration ..
.. done

Copying Apache log files ..
.. done

Copying SSL Apache virtual host configuration and certificate ..
.. done

Copying Logrotate configuration ..
.. done

Dumping MariaDB database 16810701803167066devpi ..
.. done

Copying Procmail and SpamAssassin configuration files ..
.. done

Backing up Webmin ACL files ..
.. done

Backing up AWStats configuration file ..
.. done

Backing up DAV users file ..
.. done

Creating incremental TAR file of home directory ..
.. done

… completed in 16 sekund

Creating backup for virtual server xxx.xxxxxx.xx …
Copying virtual server configuration …
… done

Backing up Cron jobs ..
.. none defined.

Copying records in DNS domain ..
.. domain not found!

Saving mail aliases ..
.. done

Saving mail and FTP users ..
.. done

Backing up mail and FTP user Cron jobs ..
.. none to backup

Copying Apache virtual host configuration ..
.. done

Copying Apache log files ..
.. done

Copying SSL Apache virtual host configuration and certificate ..
.. done

Copying Logrotate configuration ..
.. done

Dumping MariaDB database 154313438010674phpmyadmin ..
.. done

Copying Procmail and SpamAssassin configuration files ..
.. done

Backing up Webmin ACL files ..
.. done

Backing up AWStats configuration file ..
.. done

Backing up DAV users file ..
.. done

Creating incremental TAR file of home directory ..
.. done

… completed in 3 sekund

Creating backup for virtual server xxx.xxxxxx.xx …
Copying virtual server configuration …
… done

Backing up Cron jobs ..
.. done

Copying records in DNS domain ..
.. domain not found!

Saving mail aliases ..
.. done

Saving mail and FTP users ..
.. done

Backing up mail and FTP user Cron jobs ..
.. none to backup

Copying Apache virtual host configuration ..
.. done

Copying Apache log files ..
.. done

Copying SSL Apache virtual host configuration and certificate ..
.. done

Copying Logrotate configuration ..
.. done

Dumping MariaDB database 157694547322367whmcs ..
.. done

Copying Procmail and SpamAssassin configuration files ..
.. done

Backing up Webmin ACL files ..
.. done

Backing up AWStats configuration file ..
.. done

Backing up DAV users file ..
.. done

Creating incremental TAR file of home directory ..
.. done

… completed in 9 sekund

Creating backup for virtual server xxxxxxx.xx …
Copying virtual server configuration …
… done

Backing up Cron jobs ..
.. done

Copying records in DNS domain ..
.. domain not found!

Saving mail aliases ..
.. done

Saving mail and FTP users ..
.. done

Backing up mail and FTP user Cron jobs ..
.. none to backup

Copying Apache virtual host configuration ..
.. done

Copying Apache log files ..
.. done

Copying SSL Apache virtual host configuration and certificate ..
.. done

Copying Logrotate configuration ..
.. done

Dumping MariaDB database 149095757627461d8 ..
.. done

Dumping MariaDB database 149095757627461_roundcube ..
.. done

Dumping MariaDB database 149095757627461d9 ..
.. done

Copying Procmail and SpamAssassin configuration files ..
.. done

Backing up Webmin ACL files ..
.. done

Backing up AWStats configuration file ..
.. done

Backing up DAV users file ..
.. done

Creating incremental TAR file of home directory ..
.. done

… completed in 1 minut, 6 sekund

0 servers backed up successfully, 4 had errors.

Servers with errors: xxx.xxxxxx.xx xxx.xxxxx.xx xxx.xxxxxx.xx xxxxxx.xx
Deleting backups from /home/xxx/incremental on SSH server xxx.xxxxx.xx matching ...* older than 15 days …
Deleting file /home/xxx/incremental/13072023 via SSH, which is 15 days old …
… deleted 4 KiB.

… deleted 1 old backups, and skipped 13 that were not old enough

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