mongoDB 연결이 안돼요ㅠㅠ

package도 다 다운 받았어요ㅠ

작성한 코드 및 에러 메세지

from pymongo import MongoClient
import certifi

ca = certifi.where()

client = MongoClient('mongodb+srv://test:sparta@cluster0.ky4ufb9.mongodb.net/?retryWrites=true&w=majority', tlsCAFile=ca)
db = client.dbsparta

doc = {
    'name': 'bob',
    'age': 27
}

db.users.insert_one(doc)

저기 /?retryWrites=true 부분 앞에 Cluster0 적어서도 해봤어요ㅠㅠ

/Users/chanana/Desktop/pythonprac/venv/bin/python /Users/chanana/Desktop/pythonprac/dbprac.py 

Traceback (most recent call last):

 File "/Users/chanana/Desktop/pythonprac/dbprac.py", line 14, in <module>

  db.users.insert_one(doc)

 File "/Users/chanana/Desktop/pythonprac/venv/lib/python3.10/site-packages/pymongo/collection.py", line 621, in insert_one

  self._insert_one(

 File "/Users/chanana/Desktop/pythonprac/venv/lib/python3.10/site-packages/pymongo/collection.py", line 562, in _insert_one

  self.__database.client._retryable_write(acknowledged, _insert_command, session)

 File "/Users/chanana/Desktop/pythonprac/venv/lib/python3.10/site-packages/pymongo/mongo_client.py", line 1447, in _retryable_write

  with self._tmp_session(session) as s:

 File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/contextlib.py", line 135, in __enter__

  return next(self.gen)

 File "/Users/chanana/Desktop/pythonprac/venv/lib/python3.10/site-packages/pymongo/mongo_client.py", line 1729, in _tmp_session

  s = self._ensure_session(session)

 File "/Users/chanana/Desktop/pythonprac/venv/lib/python3.10/site-packages/pymongo/mongo_client.py", line 1712, in _ensure_session

  return self.__start_session(True, causal_consistency=False)

 File "/Users/chanana/Desktop/pythonprac/venv/lib/python3.10/site-packages/pymongo/mongo_client.py", line 1657, in __start_session

  self._topology._check_implicit_session_support()

 File "/Users/chanana/Desktop/pythonprac/venv/lib/python3.10/site-packages/pymongo/topology.py", line 538, in _check_implicit_session_support

  self._check_session_support()

 File "/Users/chanana/Desktop/pythonprac/venv/lib/python3.10/site-packages/pymongo/topology.py", line 554, in _check_session_support

  self._select_servers_loop(

 File "/Users/chanana/Desktop/pythonprac/venv/lib/python3.10/site-packages/pymongo/topology.py", line 238, in _select_servers_loop

  raise ServerSelectionTimeoutError(

pymongo.errors.ServerSelectionTimeoutError: ac-tx6u77m-shard-00-01.ky4ufb9.mongodb.net:27017: connection closed,ac-tx6u77m-shard-00-00.ky4ufb9.mongodb.net:27017: connection closed,ac-tx6u77m-shard-00-02.ky4ufb9.mongodb.net:27017: connection closed, Timeout: 30s, Topology Description: <TopologyDescription id: 634e716fe8437e04c846f9ac, topology_type: ReplicaSetNoPrimary, servers: [<ServerDescription ('ac-tx6u77m-shard-00-00.ky4ufb9.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-tx6u77m-shard-00-00.ky4ufb9.mongodb.net:27017: connection closed')>, <ServerDescription ('ac-tx6u77m-shard-00-01.ky4ufb9.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-tx6u77m-shard-00-01.ky4ufb9.mongodb.net:27017: connection closed')>, <ServerDescription ('ac-tx6u77m-shard-00-02.ky4ufb9.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-tx6u77m-shard-00-02.ky4ufb9.mongodb.net:27017: connection closed')>]>

Process finished with exit code 1