토이프로젝트로 데이터 베이스를 새롭게 만들어서 하려고 했는데요

해당 오류가 발생했습니다. ㅠㅠ

해당 데이터베이스 화면인데 혹시 클라이언트 쪽에 Toyprojectgroup24 이 글자가 잘못된건가요?? 

from pymongo import MongoClient
import certifi

ca = certifi.where()

client = MongoClient("mongodb+srv://cluster0.ypbqql2.mongodb.net/?authSource=%24external&authMechanism=MONGODB-X509&retryWrites=true&w=majority", tlsCAFile=ca)
db = client.Toyprojectgroup24


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

db.users.insert_one(doc)

작성한 코드 및 에러 메세지

C:\Users\admin\Desktop\sparta\sample1\venv\Scripts\python.exe C:\Users\admin\Desktop\sparta\sample1\app.py 

Traceback (most recent call last):

 File "C:\Users\admin\Desktop\sparta\sample1\app.py", line 15, in <module>

  db.users.insert_one(doc)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\collection.py", line 621, in insert_one

  self._insert_one(

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\collection.py", line 562, in _insert_one

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

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\mongo_client.py", line 1476, in _retryable_write

  return self._retry_with_session(retryable, func, s, None)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\mongo_client.py", line 1349, in _retry_with_session

  return self._retry_internal(retryable, func, session, bulk)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\_csot.py", line 105, in csot_wrapper

  return func(self, *args, **kwargs)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\mongo_client.py", line 1381, in _retry_internal

  with self._get_socket(server, session) as sock_info:

 File "C:\Users\admin\AppData\Local\Programs\Python\Python38\lib\contextlib.py", line 113, in __enter__

  return next(self.gen)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\mongo_client.py", line 1217, in _get_socket

  with server.get_socket(handler=err_handler) as sock_info:

 File "C:\Users\admin\AppData\Local\Programs\Python\Python38\lib\contextlib.py", line 113, in __enter__

  return next(self.gen)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\pool.py", line 1407, in get_socket

  sock_info = self._get_socket(handler=handler)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\pool.py", line 1520, in _get_socket

  sock_info = self.connect(handler=handler)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\pool.py", line 1378, in connect

  sock_info.authenticate()

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\pool.py", line 870, in authenticate

  auth.authenticate(creds, self)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\auth.py", line 549, in authenticate

  auth_func(credentials, sock_info)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\auth.py", line 443, in _authenticate_x509

  sock_info.command("$external", cmd)

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\pool.py", line 767, in command

  return command(

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\network.py", line 166, in command

  helpers._check_command_response(

 File "C:\Users\admin\Desktop\sparta\sample1\venv\lib\site-packages\pymongo\helpers.py", line 181, in _check_command_response

  raise OperationFailure(errmsg, code, response, max_wire_version)

pymongo.errors.OperationFailure: certificate validation failed, full error: {'ok': 0, 'errmsg': 'certificate validation failed', 'code': 8000, 'codeName': 'AtlasError'}

종료 코드 1(으)로 완료된 프로세스