import eikon as ek;

ek.set_app_key("3708c24069374533957c1121a755e0dcf5f9564e");

Error on checking port 9005 : HTTPConnectionPool(host='localhost', port=9005): Max retries exceeded with url: /api/v1/data (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x0000027AE3CDF0F0>: Failed to establish a new connection: [WinError 10061] No connection could be made because the target machine actively refused it'))

Any suggestions?