Backup errors "Version string portion was too short or too long."

[eugenevdm]

What's this?

<object name="backup" type="backupowner"><message code="ArgumentException" severity="error">Version string portion was too short or too long.</message><message code="ApplicationException" severity="error">Cannot check dump file 'backup_info_1203180200.xml' at 'C:\Program Files\SWsoft\Plesk\Backup\' [The dump has wrong format!]</message><message code="InformationalException" severity="warning">Could no backup template item 'php_isapi' with value ''</message>