Error: Data structure returned is not convertible in the requested format: Multidimensional column values not supported. Found unexpected array value for column 'widgets' in row '0': 'array (
  0 => 
  array (
    'module' => 'CoreHome',
    'action' => 'renderWidgetContainer',
  ),
  1 => 
  array (
    'module' => 'Live',
    'action' => 'widget',
  ),
  2 => 
  array (
    'module' => 'Actions',
    'action' => 'getPageTitles',
  ),
  3 => 
  array (
    'module' => 'Live',
    'action' => 'getSimpleLastVisitCount',
  ),
  4 => 
  array (
    'module' => 'Referrers',
    'action' => 'getKeywords',
  ),
  5 => 
  array (
    'module' => 'Referrers',
    'action' => 'getWebs'. Try to call this method with the parameters '&format=original&serialize=1'; you will get the original php data structure serialized.