Application Error

        	PDOException: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #21 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'infocircotienda.pd.product_titulo' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by in /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Db/Statement/Pdo.php:228
Stack trace:
#0 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Db/Statement/Pdo.php(228): PDOStatement->execute(Array)
#1 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Db/Statement.php(300): Zend_Db_Statement_Pdo->_execute(Array)
#2 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Db/Adapter/Abstract.php(468): Zend_Db_Statement->execute(Array)
#3 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SELECT `p`.`id`...', Array)
#4 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/application/modules/car/models/Product.php(187): Zend_Db_Adapter_Pdo_Abstract->query(Object(Zend_Db_Select))
#5 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/application/modules/car/controllers/PublicController.php(288): Product->getSearchProductPublic('es', '', '', '', '', '', true)
#6 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Controller/Action.php(513): Mod_Car_PublicController->homeAction()
#7 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Controller/Dispatcher/Standard.php(289): Zend_Controller_Action->dispatch('homeAction')
#8 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#9 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch()
#10 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run()
#11 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/index.php(40): Zend_Application->run()
#12 {main}

Next Zend_Db_Statement_Exception: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #21 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'infocircotienda.pd.product_titulo' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by in /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Db/Statement/Pdo.php:234
Stack trace:
#0 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Db/Statement.php(300): Zend_Db_Statement_Pdo->_execute(Array)
#1 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Db/Adapter/Abstract.php(468): Zend_Db_Statement->execute(Array)
#2 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SELECT `p`.`id`...', Array)
#3 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/application/modules/car/models/Product.php(187): Zend_Db_Adapter_Pdo_Abstract->query(Object(Zend_Db_Select))
#4 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/application/modules/car/controllers/PublicController.php(288): Product->getSearchProductPublic('es', '', '', '', '', '', true)
#5 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Controller/Action.php(513): Mod_Car_PublicController->homeAction()
#6 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Controller/Dispatcher/Standard.php(289): Zend_Controller_Action->dispatch('homeAction')
#7 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#8 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch()
#9 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/library/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run()
#10 /var/www/vhosts/festivaldelcirc.com/httpdocs/infocircotienda/index.php(40): Zend_Application->run()
#11 {main}