Starting Piwik reports archiving...

Archiving period = day for idsite = 1...
<?xml version="1.0" encoding="utf-8" ?>
<results>
        <result date="2013-09-12" />
        ...
        <result date="2013-11-02" />
</results>
 - Archiving for visitor segment No ...
<?xml version="1.0" encoding="utf-8" ?>
<result>
        <error message="The segment 'No' is not valid." />
</result>
 - Archiving for visitor segment data ...
<?xml version="1.0" encoding="utf-8" ?>
<result>
        <error message="The segment 'data' is not valid." />
</result>
 - Archiving for visitor segment available ...
<?xml version="1.0" encoding="utf-8" ?>
<result>
        <error message="The segment 'available' is not valid." />
</result>