pleskbackup.exe bugged smarterstats

[auroranetwork]

hello when I try to launch the pleskbackup.exe cli it returns everytime "Backup Failed" and this is the exception:
10352: Error 08/01/2009 11:40:40.802 : ---------------------- Exception start ------------------------
10352: Error 08/01/2009 11:40:40.802 : Cannot dump domain hosting settings
10352: Error 08/01/2009 11:40:40.849 : psadumpagent.InformationalException: Cannot dump domain hosting settings ---> System.ArgumentException: Requested value 'smarterstats' was not found.
at System.Enum.Parse(Type enumType, String value, Boolean ignoreCase)
at psadumpschema.DumpObject.ParseEnum(Type enumType, Type entityType, String Value, Boolean useMap)
at psadumpschema.Types.WebstatValueEntity.Parse(String Value, Boolean useMap)
at psa9dumpagent.PSADomainObject.dumpPhosting()
at psa9dumpagent.PSADomainObject.doDomainDump()
--- End of inner exception stack trace ---
10352: Error 08/01/2009 11:40:40.849 : ---------------------- Exception end ------------------------

besides in migration.result I found :
<?xml version="1.0" encoding="utf-8"?>
<execution-result status="error">
<object name="backup" type="backupowner">
<message code="InformationalException" severity="error">Cannot dump domain hosting settings</message>
<message code="ApplicationException" severity="error">Cannot check dump file 'clients\H-02367780133\domains\decasrl.biz\backup_decasrl.biz_info_0901081140.xml' at 'C:\Program Files\SWsoft\Plesk\Backup\' [The dump has content errors!]</message>
</object>
</execution-result>