Warning: mysqli_connect(): php_network_getaddresses: getaddrinfo for srv-captain--php-sites-db failed: Name or service not known in /app/core/mysql.php on line 4

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for srv-captain--php-sites-db failed: Name or service not known in /app/core/mysql.php:4 Stack trace: #0 /app/core/mysql.php(4): mysqli_connect('srv-captain--ph...', 'root', Object(SensitiveParameterValue), 'hc.lv') #1 /app/core/general_functions.php(6): require('/app/core/mysql...') #2 /app/core/index.php(15): require('/app/core/gener...') #3 /app/hc.lv/index.php(9): require('/app/core/index...') #4 {main} thrown in /app/core/mysql.php on line 4