Diese Woche im Planetarium

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 'admin_planetarium.film_schedule.id' 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/planetarium.bz.it/httpdocs/program/week_program_preview.php:49 Stack trace: #0 /var/www/vhosts/planetarium.bz.it/httpdocs/program/week_program_preview.php(49): PDO->query('SELECT film_sch...') #1 /var/www/vhosts/planetarium.bz.it/httpdocs/program/index.php(28): require_once('/var/www/vhosts...') #2 {main} thrown in /var/www/vhosts/planetarium.bz.it/httpdocs/program/week_program_preview.php on line 49