Error: Data structure returned is not convertible in the requested format. Try to call this method with the parameters '&format=original&serialize=1'; you will get the original php data structure serialized. The data structure looks like this: $data = array ( 'website' => 'Piwik Forums', 'prettyDate' => 'Friday 28 August 2015', 'metadata' => array ( 'category' => 'Visitors', 'name' => 'Country', 'module' => 'UserCountry', 'action' => 'getCountry', 'dimension' => 'Country', 'documentation' => 'This report shows which country your visitors were in when they accessed your website.', 'metrics' => array ( 'nb_visits' => 'Visits', 'nb_uniq_visitors' => 'Unique visitors', 'nb_actions' => 'Actions', ), 'metricsDocumentation' => array ( 'nb_visits' => 'If a visitor comes to your website for the first time or if he visits a page more than 30 minutes after his last page view, this will be recorded as a new visit.', 'nb_uniq_visitors' => 'The number of unduplicated visitors coming to your website. Every user is only counted once, even if he visits the website multiple times a day.', 'nb_actions' => 'The number of actions performed by your visitors. Actions can be page views, internal site searches, downloads or outlinks.', 'nb_actions_per_visit' => 'The average number of actions (page views, site searches, downloads or outlinks) that were performed during the visits.', 'avg_time_on_site' => 'The average duration of a visit.', 'bounce_rate' => 'The percentage of visits that only had a single pageview. This means, that the visitor left the website directly from the entrance page.', 'conversion_rate' => 'The percentage of visits that triggered a goal conversion.', ), 'processedMetrics' => array ( 'nb_actions_per_visit' => 'Actions per Visit', 'avg_time_on_site' => 'Avg. Time on Website', 'bounce_rate' => 'Bounce Rate', ), 'metricsGoal' => array ( 'nb_conversions' => 'Conversions', 'revenue' => 'Revenue', ), 'processedMetricsGoal' => array ( 'revenue_per_visit' => 'Revenue per Visit', ), 'imageGraphUrl' => 'index.php?module=API&method=ImageGraph.get&idSite=7&apiModule=UserCountry&apiAction=getCountry&token_auth=anonymous&period=day&date=today', 'imageGraphEvolutionUrl' => 'index.php?module=API&method=ImageGraph.get&idSite=7&apiModule=UserCountry&apiAction=getCountry&token_auth=anonymous&period=day&date=2015-07-30,2015-08-28', 'uniqueId' => 'UserCountry_getCountry', ), 'columns' => array ( 'label' => 'Country', 'nb_visits' => 'Visits', 'nb_uniq_visitors' => 'Unique visitors', 'nb_actions' => 'Actions', 'nb_actions_per_visit' => 'Actions per Visit', 'avg_time_on_site' => 'Avg. Time on Website', 'bounce_rate' => 'Bounce Rate', 'revenue' => 'Revenue', ), 'reportData' => Piwik\DataTable::__set_state(array( 'rows' => array ( 0 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'United States', 'nb_uniq_visitors' => 7, 'nb_visits' => 7, 'nb_actions' => 13, 'nb_actions_per_visit' => 1.899999999999999911182158029987476766109466552734375, 'avg_time_on_site' => '00:01:25', 'bounce_rate' => '71%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 1 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Japan', 'nb_uniq_visitors' => 4, 'nb_visits' => 4, 'nb_actions' => 4, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 2 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'China', 'nb_uniq_visitors' => 3, 'nb_visits' => 3, 'nb_actions' => 4, 'nb_actions_per_visit' => 1.3000000000000000444089209850062616169452667236328125, 'avg_time_on_site' => '00:05:29', 'bounce_rate' => '67%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 3 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'United Kingdom', 'nb_uniq_visitors' => 2, 'nb_visits' => 3, 'nb_actions' => 3, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 4 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Australia', 'nb_uniq_visitors' => 2, 'nb_visits' => 2, 'nb_actions' => 2, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 5 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Mexico', 'nb_uniq_visitors' => 2, 'nb_visits' => 2, 'nb_actions' => 2, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 6 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Spain', 'nb_uniq_visitors' => 2, 'nb_visits' => 2, 'nb_actions' => 2, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 7 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Brazil', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 8 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Canada', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 9 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'France', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 10 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'India', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 11 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Malaysia', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 12 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Morocco', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 13 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Nepal', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 14 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Philippines', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 15 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'South Korea', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 16 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Taiwan', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 17 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Turkey', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 18 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'label' => 'Ukraine', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 3, 'nb_actions_per_visit' => 3, 'avg_time_on_site' => '00:02:57', 'bounce_rate' => '0%', 'revenue' => '$ 0', ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), ), 'currentId' => 3, 'depthLevel' => 0, 'indexNotUpToDate' => true, 'rebuildIndexContinuously' => false, 'tableSortedBy' => false, 'queuedFilters' => array ( ), 'disabledFilters' => array ( ), 'rowsCountBeforeLimitFilter' => 0, 'enableRecursiveSort' => false, 'enableRecursiveFilters' => false, 'rowsIndexByLabel' => array ( ), 'summaryRow' => NULL, 'metadata' => array ( ), 'maximumAllowedRows' => 0, )), 'reportMetadata' => Piwik\DataTable::__set_state(array( 'rows' => array ( 0 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'us', 'logo' => 'plugins/UserCountry/images/flags/us.png', 'segment' => 'countryCode==us', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 1 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'jp', 'logo' => 'plugins/UserCountry/images/flags/jp.png', 'segment' => 'countryCode==jp', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 2 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'cn', 'logo' => 'plugins/UserCountry/images/flags/cn.png', 'segment' => 'countryCode==cn', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 3 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'gb', 'logo' => 'plugins/UserCountry/images/flags/gb.png', 'segment' => 'countryCode==gb', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 4 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'au', 'logo' => 'plugins/UserCountry/images/flags/au.png', 'segment' => 'countryCode==au', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 5 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'mx', 'logo' => 'plugins/UserCountry/images/flags/mx.png', 'segment' => 'countryCode==mx', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 6 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'es', 'logo' => 'plugins/UserCountry/images/flags/es.png', 'segment' => 'countryCode==es', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 7 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'br', 'logo' => 'plugins/UserCountry/images/flags/br.png', 'segment' => 'countryCode==br', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 8 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'ca', 'logo' => 'plugins/UserCountry/images/flags/ca.png', 'segment' => 'countryCode==ca', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 9 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'fr', 'logo' => 'plugins/UserCountry/images/flags/fr.png', 'segment' => 'countryCode==fr', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 10 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'in', 'logo' => 'plugins/UserCountry/images/flags/in.png', 'segment' => 'countryCode==in', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 11 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'my', 'logo' => 'plugins/UserCountry/images/flags/my.png', 'segment' => 'countryCode==my', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 12 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'ma', 'logo' => 'plugins/UserCountry/images/flags/ma.png', 'segment' => 'countryCode==ma', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 13 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'np', 'logo' => 'plugins/UserCountry/images/flags/np.png', 'segment' => 'countryCode==np', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 14 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'ph', 'logo' => 'plugins/UserCountry/images/flags/ph.png', 'segment' => 'countryCode==ph', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 15 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'kr', 'logo' => 'plugins/UserCountry/images/flags/kr.png', 'segment' => 'countryCode==kr', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 16 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'tw', 'logo' => 'plugins/UserCountry/images/flags/tw.png', 'segment' => 'countryCode==tw', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 17 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'tr', 'logo' => 'plugins/UserCountry/images/flags/tr.png', 'segment' => 'countryCode==tr', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), 18 => Piwik\DataTable\Row::__set_state(array( 'maxVisitsSummed' => 0, 'columns' => array ( 'code' => 'ua', 'logo' => 'plugins/UserCountry/images/flags/ua.png', 'segment' => 'countryCode==ua', 'logoWidth' => 16, 'logoHeight' => 11, ), 'metadata' => array ( ), 'isSubtableLoaded' => false, 'subtableId' => NULL, )), ), 'currentId' => 2, 'depthLevel' => 0, 'indexNotUpToDate' => true, 'rebuildIndexContinuously' => false, 'tableSortedBy' => false, 'queuedFilters' => array ( ), 'disabledFilters' => array ( ), 'rowsCountBeforeLimitFilter' => 0, 'enableRecursiveSort' => false, 'enableRecursiveFilters' => false, 'rowsIndexByLabel' => array ( ), 'summaryRow' => NULL, 'metadata' => array ( ), 'maximumAllowedRows' => 0, )), 'reportTotal' => array ( 'nb_visits' => 35, 'nb_uniq_visitors' => 34, 'nb_actions' => 44, 'nb_visits_converted' => 0, 'bounce_count' => 31, ), 'timerMillis' => '57', );