Django Error

Since I upgrade PyCharm y starte with problem so I decided to uninstall and reinstal Pycharm community 22021 1.3

But I still facing problems  my steps were:

1) Istall Pycharm

2) Create a new project with local venv

3) In terminal pip install django

4) django-admin startproject app

5) cd app

6) manage.py startapp prueba

My problem that projectapp is created but app prueba isn't created.

As I undestand djjango is installed 

I think thad there is something from an old istalation giving problem-

¿Any tip ?