Fatal error: Uncaught mysqli_sql_exception: Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'db11019831-vergabe.a.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by in /is/htdocs/wp11019831_KYM3S0CIHE/www/manke-vergabe.de_2022/inc/class/datasource.class.php:16 Stack trace: #0 /is/htdocs/wp11019831_KYM3S0CIHE/www/manke-vergabe.de_2022/inc/class/datasource.class.php(16): mysqli_query(Object(mysqli), 'SELECT a.id AS ...') #1 /is/htdocs/wp11019831_KYM3S0CIHE/www/manke-vergabe.de_2022/inc/func/functions.php(1200): Datasource->execute('SELECT a.id AS ...') #2 /is/htdocs/wp11019831_KYM3S0CIHE/www/manke-vergabe.de_2022/login.php(16): getLoginAusschreibungenListe(Object(Datasource)) #3 {main} thrown in /is/htdocs/wp11019831_KYM3S0CIHE/www/manke-vergabe.de_2022/inc/class/datasource.class.php on line 16