error pagination timeline

gistfile1.txt

An exception has been thrown during the rendering of a template ("An exception occurred while executing 'SELECT COUNT(*) AS dctrn_count FROM (SELECT DISTINCT id6 FROM (SELECT s0_.verb AS verb0, s0_.status_current AS status_current1, s0_.status_wanted AS status_wanted2, s0_.duplicate_key AS duplicate_key3, s0_.duplicate_priority AS duplicate_priority4, s0_.created_at AS created_at5, s0_.id AS id6, s1_.type AS type7, s1_.text AS text8, s1_.id AS id9, s2_.model AS model10, s2_.identifier AS identifier11, s2_.hash AS hash12, s2_.id AS id13, s1_.action_id AS action_id14, s1_.component_id AS component_id15 FROM spy_timeline_action s0_ INNER JOIN spy_timeline_action_component s3_ ON s0_.id = s3_.action_id AND ((s3_.action_id = s0_.id AND s3_.component_id = ? AND s3_.type = ?)) LEFT JOIN spy_timeline_action_component s1_ ON s0_.id = s1_.action_id LEFT JOIN spy_timeline_component s2_ ON s1_.component_id = s2_.id WHERE s0_.status_current = ? ORDER BY s0_.created_at DESC) dctrn_result) dctrn_table' with params {"1":"subject","2":{},"3":"published"}:

Catchable Fatal Error: Object of class ant\SocialBundle\Entity\Component could not be converted to string in /var/www/workspace/salirdefiestas/vendor/doctrine/dbal/lib/Doctrine/DBAL/Connection.php line 1211") in /var/www/workspace/salirdefiestas/vendor/ping86/social-bundle/ant/SocialBundle/Resources/views/Perfil/index.html.twig at line 46