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' => 'Mit dem Fahrrad zur Arbeit', 'prettyDate' => 'Wednesday, May 27, 2020', 'metadata' => array ( 'category' => 'Visitors', 'subcategory' => 'Locations', '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 they visit a page more than 30 minutes after their 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 they visit 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=2&apiModule=UserCountry&apiAction=getCountry&token_auth=anonymous&period=day&date=yesterday', 'imageGraphEvolutionUrl' => 'index.php?module=API&method=ImageGraph.get&idSite=2&apiModule=UserCountry&apiAction=getCountry&token_auth=anonymous&period=day&date=2020-04-28,2020-05-27', '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( 'label' => 'Germany', 'nb_uniq_visitors' => 169, 'nb_visits' => 180, 'nb_actions' => 379, 'nb_actions_per_visit' => 2.100000000000000088817841970012523233890533447265625, 'avg_time_on_site' => '00:01:22', 'bounce_rate' => '68%', 'revenue' => '€0', )), 1 => Piwik\DataTable\Row::__set_state(array( 'label' => 'Switzerland', 'nb_uniq_visitors' => 5, 'nb_visits' => 5, 'nb_actions' => 7, 'nb_actions_per_visit' => 1.399999999999999911182158029987476766109466552734375, 'avg_time_on_site' => '00:00:50', 'bounce_rate' => '60%', 'revenue' => '€0', )), 2 => Piwik\DataTable\Row::__set_state(array( 'label' => 'Austria', 'nb_uniq_visitors' => 3, 'nb_visits' => 3, 'nb_actions' => 5, 'nb_actions_per_visit' => 1.6999999999999999555910790149937383830547332763671875, 'avg_time_on_site' => '00:00:53', 'bounce_rate' => '67%', 'revenue' => '€0', )), 3 => Piwik\DataTable\Row::__set_state(array( 'label' => 'France', 'nb_uniq_visitors' => 2, 'nb_visits' => 3, 'nb_actions' => 3, 'nb_actions_per_visit' => 1.0, 'avg_time_on_site' => '00:00:01', 'bounce_rate' => '100%', 'revenue' => '€0', )), 4 => Piwik\DataTable\Row::__set_state(array( 'label' => 'United Kingdom', 'nb_uniq_visitors' => 2, 'nb_visits' => 2, 'nb_actions' => 5, 'nb_actions_per_visit' => 2.5, 'avg_time_on_site' => '00:02:07', 'bounce_rate' => '0%', 'revenue' => '€0', )), 5 => Piwik\DataTable\Row::__set_state(array( 'label' => 'United States', 'nb_uniq_visitors' => 2, 'nb_visits' => 2, 'nb_actions' => 2, 'nb_actions_per_visit' => 1.0, 'avg_time_on_site' => '00:00:02', 'bounce_rate' => '100%', 'revenue' => '€0', )), 6 => Piwik\DataTable\Row::__set_state(array( 'label' => 'Unknown', 'nb_uniq_visitors' => 2, 'nb_visits' => 2, 'nb_actions' => 4, 'nb_actions_per_visit' => 2.0, 'avg_time_on_site' => '00:03:40', 'bounce_rate' => '50%', 'revenue' => '€0', )), 7 => Piwik\DataTable\Row::__set_state(array( 'label' => 'Belgium', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1.0, 'avg_time_on_site' => '00:00:01', 'bounce_rate' => '100%', 'revenue' => '€0', )), 8 => Piwik\DataTable\Row::__set_state(array( 'label' => 'Netherlands', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 3, 'nb_actions_per_visit' => 3.0, 'avg_time_on_site' => '00:10:23', 'bounce_rate' => '0%', 'revenue' => '€0', )), 9 => Piwik\DataTable\Row::__set_state(array( 'label' => 'Romania', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1.0, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '€0', )), 10 => Piwik\DataTable\Row::__set_state(array( 'label' => 'Serbia', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1.0, 'avg_time_on_site' => '00:00:02', 'bounce_rate' => '100%', 'revenue' => '€0', )), 11 => Piwik\DataTable\Row::__set_state(array( 'label' => 'Sweden', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 3, 'nb_actions_per_visit' => 3.0, 'avg_time_on_site' => '00:01:40', 'bounce_rate' => '0%', 'revenue' => '€0', )), 12 => Piwik\DataTable\Row::__set_state(array( 'label' => 'Ukraine', 'nb_uniq_visitors' => 1, 'nb_visits' => 1, 'nb_actions' => 1, 'nb_actions_per_visit' => 1.0, 'avg_time_on_site' => '00:00:00', 'bounce_rate' => '100%', 'revenue' => '€0', )), ), 'currentId' => 4, 'depthLevel' => 0, 'indexNotUpToDate' => true, 'rebuildIndexContinuously' => false, 'tableSortedBy' => false, 'queuedFilters' => array ( ), 'disabledFilters' => array ( ), 'rowsCountBeforeLimitFilter' => 0, 'enableRecursiveSort' => false, 'enableRecursiveFilters' => false, 'rowsIndexByLabel' => array ( ), 'summaryRow' => NULL, 'totalsRow' => NULL, 'metadata' => array ( ), 'maximumAllowedRows' => 0, )), 'reportMetadata' => Piwik\DataTable::__set_state(array( 'rows' => array ( 0 => Piwik\DataTable\Row::__set_state(array( 'code' => 'de', 'logo' => 'plugins/Morpheus/icons/dist/flags/de.png', 'segment' => 'countryCode==de', 'logoHeight' => 16, )), 1 => Piwik\DataTable\Row::__set_state(array( 'code' => 'ch', 'logo' => 'plugins/Morpheus/icons/dist/flags/ch.png', 'segment' => 'countryCode==ch', 'logoHeight' => 16, )), 2 => Piwik\DataTable\Row::__set_state(array( 'code' => 'at', 'logo' => 'plugins/Morpheus/icons/dist/flags/at.png', 'segment' => 'countryCode==at', 'logoHeight' => 16, )), 3 => Piwik\DataTable\Row::__set_state(array( 'code' => 'fr', 'logo' => 'plugins/Morpheus/icons/dist/flags/fr.png', 'segment' => 'countryCode==fr', 'logoHeight' => 16, )), 4 => Piwik\DataTable\Row::__set_state(array( 'code' => 'gb', 'logo' => 'plugins/Morpheus/icons/dist/flags/gb.png', 'segment' => 'countryCode==gb', 'logoHeight' => 16, )), 5 => Piwik\DataTable\Row::__set_state(array( 'code' => 'us', 'logo' => 'plugins/Morpheus/icons/dist/flags/us.png', 'segment' => 'countryCode==us', 'logoHeight' => 16, )), 6 => Piwik\DataTable\Row::__set_state(array( 'code' => 'eu', 'logo' => 'plugins/Morpheus/icons/dist/flags/eu.png', 'segment' => 'countryCode==eu', 'logoHeight' => 16, )), 7 => Piwik\DataTable\Row::__set_state(array( 'code' => 'be', 'logo' => 'plugins/Morpheus/icons/dist/flags/be.png', 'segment' => 'countryCode==be', 'logoHeight' => 16, )), 8 => Piwik\DataTable\Row::__set_state(array( 'code' => 'nl', 'logo' => 'plugins/Morpheus/icons/dist/flags/nl.png', 'segment' => 'countryCode==nl', 'logoHeight' => 16, )), 9 => Piwik\DataTable\Row::__set_state(array( 'code' => 'ro', 'logo' => 'plugins/Morpheus/icons/dist/flags/ro.png', 'segment' => 'countryCode==ro', 'logoHeight' => 16, )), 10 => Piwik\DataTable\Row::__set_state(array( 'code' => 'rs', 'logo' => 'plugins/Morpheus/icons/dist/flags/rs.png', 'segment' => 'countryCode==rs', 'logoHeight' => 16, )), 11 => Piwik\DataTable\Row::__set_state(array( 'code' => 'se', 'logo' => 'plugins/Morpheus/icons/dist/flags/se.png', 'segment' => 'countryCode==se', 'logoHeight' => 16, )), 12 => Piwik\DataTable\Row::__set_state(array( 'code' => 'ua', 'logo' => 'plugins/Morpheus/icons/dist/flags/ua.png', 'segment' => 'countryCode==ua', 'logoHeight' => 16, )), ), 'currentId' => 3, 'depthLevel' => 0, 'indexNotUpToDate' => true, 'rebuildIndexContinuously' => false, 'tableSortedBy' => false, 'queuedFilters' => array ( ), 'disabledFilters' => array ( ), 'rowsCountBeforeLimitFilter' => 0, 'enableRecursiveSort' => false, 'enableRecursiveFilters' => false, 'rowsIndexByLabel' => array ( ), 'summaryRow' => NULL, 'totalsRow' => NULL, 'metadata' => array ( ), 'maximumAllowedRows' => 0, )), 'reportTotal' => array ( 'nb_uniq_visitors' => 191, 'nb_visits' => 203, 'nb_actions' => 415, 'nb_users' => 0, 'max_actions' => 20.0, 'sum_visit_length' => 16519, 'bounce_count' => 137, 'nb_visits_converted' => 0, 'nb_actions_per_visit' => 2.0, ), 'timerMillis' => '134', );