Error while using manage.py

I am using conda virtual enviroment to use django for my project . I am learning django from telusko youtube channel . First time while using python manage.py runserver , python manage.py startapp hari . Everything was quit great and working finely after I have closed my visual studio code and opened I have got a huge list of import errors what should I do now what happened to my virtual environment . Please help me friends I am highly believing you all

Watching for file changes with StatReloader

Exception in thread django-main-thread:

Traceback (most recent call last):

  File "C:\Users\Naveen\anaconda3\lib\threading.py", line 926, in _bootstrap_inner

    self.run()

  File "C:\Users\Naveen\anaconda3\lib\threading.py", line 870, in run

    self._target(*self._args, **self._kwargs)

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper

    fn(*args, **kwargs)

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\core\management\commands\runserver.py", line 109, in inner_run

    autoreload.raise_last_exception()

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\utils\autoreload.py", line 76, in raise_last_exception

    raise _exception[1]

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\core\management\__init__.py", line 357, in execute

    autoreload.check_errors(django.setup)()

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper

    fn(*args, **kwargs)

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\__init__.py", line 24, in setup

    apps.populate(settings.INSTALLED_APPS)

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\apps\registry.py", line 114, in populate

    app_config.import_models()

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\apps\config.py", line 211, in import_models

    self.models_module = import_module(models_module_name)

  File "C:\Users\Naveen\anaconda3\lib\importlib\__init__.py", line 127, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import

  File "<frozen importlib._bootstrap>", line 983, in _find_and_load

  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked

  File "<frozen importlib._bootstrap_external>", line 728, in exec_module

  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\contrib\auth\models.py", line 2, in <module>

    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\contrib\auth\base_user.py", line 47, in <module>

    class AbstractBaseUser(models.Model):

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\db\models\base.py", line 121, in __new__

    new_class.add_to_class('_meta', Options(meta, app_label))

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\db\models\base.py", line 325, in add_to_class

    value.contribute_to_class(cls, name)

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\db\models\options.py", line 208, in contribute_to_class

    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\db\__init__.py", line 28, in __getattr__

    return getattr(connections[DEFAULT_DB_ALIAS], item)

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\db\utils.py", line 207, in __getitem__

    backend = load_backend(db['ENGINE'])

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\db\utils.py", line 111, in load_backend

    return import_module('%s.base' % backend_name)

  File "C:\Users\Naveen\anaconda3\lib\importlib\__init__.py", line 127, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "C:\Users\Naveen\anaconda3\lib\site-packages\django\db\backends\sqlite3\base.py", line 14, in <module>

    from sqlite3 import dbapi2 as Database

  File "C:\Users\Naveen\anaconda3\lib\sqlite3\__init__.py", line 23, in <module>

    from sqlite3.dbapi2 import *

  File "C:\Users\Naveen\anaconda3\lib\sqlite3\dbapi2.py", line 27, in <module>

    from _sqlite3 import *

ImportError: DLL load failed: The specified module could not be found. 

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