An import error occurs when trying to run `jupyter` notebook

I'm trying to run `jupyter` notebook using `anaconda` (`git bash` platform), and as I type in `jupyter` notebook, an import error occurs every time. I tried to lauch it inside an environment, but the same error occured.

```
$ jupyter notebook

```

Traceback (most recent call last):

```
File "C:\Users\User\Anaconda3\Scripts\jupyter-notebook-script.py", line 6, in
 <module>
from notebook.notebookapp import main
File "C:\Users\User\Anaconda3\lib\site-packages\notebook\notebookapp.py", line 47, in <module>
from zmq.eventloop import ioloop
File "C:\Users\User\Anaconda3\lib\site-packages\zmq\__init__.py", line 47, in <module>
from zmq import backend
File "C:\Users\User\Anaconda3\lib\site-packages\zmq\backend\__init__.py", line 40, in <module>
reraise(*exc_info)
File "C:\Users\User\Anaconda3\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise
raise value
File "C:\Users\User\Anaconda3\lib\site-packages\zmq\backend\__init__.py", line 27, in <module>
_ns = select_backend(first)
File "C:\Users\User\Anaconda3\lib\site-packages\zmq\backend\select.py", line 27, in select_backend
mod = __import__(name, fromlist=public_api)
File "C:\Users\User\Anaconda3\lib\site-packages\zmq\backend\cython\__init__.py", line 6, in <module>
from . import (constants, error, message, context,
    ImportError: DLL load failed: The specified module could not be found.

```

***EDITED***
After reinstalling pyzmq (and I tried reinstalling conda too), the following error occurs:

```
$ jupyter notebook

```

> 
> Traceback (most recent call last): File
>  "C:\Users\User\Anaconda3\lib\site-packages\notebook\services\sessions\sessionmanager.py",
>  line 10, in 
>  import sqlite3
> 
> 
> File "C:\Users\User\Anaconda3\lib\sqlite3\_\_init\_\_.py", line 23, in
>  
>  from sqlite3.dbapi2 import \*
> 
> 
> File "C:\Users\User\Anaconda3\lib\sqlite3\dbapi2.py", line 27, in
>  
> 
> 
> 
> ```
> from _sqlite3 import *
> 
> ```
> 
> ImportError: DLL load failed: The specified module could not be found.
> 
> 
> During handling of the above exception, another exception occurred:
> 
> 
> Traceback (most recent call last): File
>  "C:\Users\User\Anaconda3\Scripts\jupyter-notebook-script.py", line 6,
>  in 
> 
> 
> 
> ```
> from notebook.notebookapp import main
> 
> ```
> 
> File
>  "C:\Users\User\Anaconda3\lib\site-packages\notebook\notebookapp.py",
>  line 86, in 
> 
> 
> 
> ```
> from .services.sessions.sessionmanager import SessionManager
> 
> ```
> 
> File
>  "C:\Users\User\Anaconda3\lib\site-packages\notebook\services\sessions\sessionmanager.py",
>  line 13, in 
> 
> 
> 
> ```
> from pysqlite2 import dbapi2 as sqlite3
> 
> ```
> 
> ModuleNotFoundError: No module named 'pysqlite2'
> 
> 
>