Fatal error: Uncaught PDOException: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'assessocor.event_edition_files.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by in /workspace/DAOs/Event_Edition_FileDAO.class.php:141 Stack trace: #0 /workspace/DAOs/Event_Edition_FileDAO.class.php(141): PDOStatement->execute() #1 /workspace/views/Controllers/Event_Edition_FileC.class.php(286): Event_Edition_FileDAO::selectByGroup() #2 /workspace/views/public/editionsAlbumsVP.php(4): Event_Edition_FileC::listGroup() #3 /workspace/index.php(701): include_once('...') #4 {main} thrown in /workspace/DAOs/Event_Edition_FileDAO.class.php on line 141