Unable to restore successfully imported dump during migration from Confixx: PHP Fatal error: Call to undefined method backup_Conflicts_PleskDataManager

Symptoms

Unable to restore successfully imported dump during migration from Confixx:

Failed to perform an action on subscription 'example.com': Failed to restore hosting settings of subscription 'example.com' Exception message: Migration tools tried to perform operation in 3 attempts: Restoration of hosting settings (addon domains, mailboxes, PHP settings, etc) of subscription failed.
Check PMM restoration logs for more details.
Error code: 1000
Error message: PHP Fatal error:  Call to undefined method backup_Conflicts_PleskDataManager::getDomainIps() in /opt/psa/admin/plib/backup/Conflicts/Resolver/IpMapping.php on line 265
Error occured while sending feedback. HTTP code returned: 502

Cause

This is an internal issue with ID #PPPM-4058 , which is planned to be fixed in future product updates.

Workaround

Replace /opt/psa/admin/plib/backup/Conflicts/PleskDataManager.php file with the custom fix attached :

1. Unpack the archive

2. Create a backup of /opt/psa/admin/plib/backup/Conflicts/PleskDataManager.php file:

   # cp /opt/psa/admin/plib/backup/Conflicts/PleskDataManager.php{.,backup}
   

3. Replace /opt/psa/admin/plib/backup/Conflicts/PleskDataManager.php with the extracted PleskDataManager.php file:

   # mv PleskDataManager.php /opt/psa/admin/plib/backup/Conflicts/PleskDataManager.php