Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'rainbowpages_testbed.banner_category_group.investment_value' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by' in /var/www/html/lib/class.dbQuery.php:670
Stack trace:
#0 /var/www/html/lib/class.dbQuery.php(670): PDO->prepare('SELECT banner.i...')
#1 /var/www/html/controller/advertisement-controller.php(99): DbQuery->executeSqlQuery('SELECT banner.i...', Array)
#2 /var/www/html/group.php(117): getGroupSidebarAdvertisements(2)
#3 /var/www/html/router.php(79): include('/var/www/html/g...')
#4 /var/www/html/router.php(72): getGroupTemplate()
#5 {main}
thrown in /var/www/html/lib/class.dbQuery.php on line 670
