Warning: mysqli::real_connect(): php_network_getaddresses: getaddrinfo for ivv5dbsrv05 failed: Name or service not known in /www/data/AMM/php_includes/mysql-emulation.php on line 20

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for ivv5dbsrv05 failed: Name or service not known in /www/data/AMM/php_includes/mysql-emulation.php:20 Stack trace: #0 /www/data/AMM/php_includes/mysql-emulation.php(20): mysqli->real_connect('ivv5dbsrv05', 'vorlesungenro', Object(SensitiveParameterValue)) #1 /www/data/AMM/php_includes/mysql-emulation.php(10): mysql_connect_no_set('ivv5dbsrv05', 'vorlesungenro', 'VorlFtwRO') #2 /www/data/AMM/htdocs/AMM/num/Vorlesungen/vorldb_no_table.php(11): mysql_connect('ivv5dbsrv05', 'vorlesungenro', 'VorlFtwRO') #3 /www/data/AMM/htdocs/AMM/num/Vorlesungen/vorldb_no_table.php(130): open_database('W2023') #4 /www/data/AMM/htdocs/AMM/num/Vorlesungen/index_aktuelles_semester_mit_artikel.html(10): init_doz('Wintersemester ...', 'W2023', 'de') #5 /www/data/AMM/htdocs/AMM/num/Vorlesungen/index_aktuelles_semester_mit_artikel.html(184): show_numerik('Wintersemester ...', 'W2023') #6 {main} thrown in /www/data/AMM/php_includes/mysql-emulation.php on line 20