I have this error, help me to solve this error

raise ServerSelectionTimeoutError(

pymongo.errors.ServerSelectionTimeoutError: ac-zdogsid-shard-00-02.fy83lwj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1129),ac-zdogsid-shard-00-01.fy83lwj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1129),ac-zdogsid-shard-00-00.fy83lwj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1129), Timeout: 30s, Topology Description: <TopologyDescription id: 6616a1e7fd541fde7a32cc0a, topology_type: ReplicaSetNoPrimary, servers: [<ServerDescription (‘ac-zdogsid-shard-00-00.fy83lwj.mongodb.net’, 27017) server_type: Unknown, rtt: None, error=AutoReconnect(‘ac-zdogsid-shard-00-00.fy83lwj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1129)’)>, <ServerDescription (‘ac-zdogsid-shard-00-01.fy83lwj.mongodb.net’, 27017) server_type: Unknown, rtt: None, error=AutoReconnect(‘ac-zdogsid-shard-00-01.fy83lwj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1129)’)>, <ServerDescription (‘ac-zdogsid-shard-00-02.fy83lwj.mongodb.net’, 27017) server_type: Unknown, rtt: None, error=AutoReconnect(‘ac-zdogsid-shard-00-02.fy83lwj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1129)’)>]>