ModuleNotFoundError: No module named 'mysite' django application - django

Question

Good morning,
I have read other similar posts but I still cannot solve my problem. Could anyone point out to me into the right direction?
From one moment to another I started getting the following error. I have not made any changes to the settings.py file. The last feature that I installed, was the Django avatar package which has been running without problems.
The error that I get is the following: " ModuleNotFoundError: No module named 'mysite'"
Settings.py:
from pathlib import Path
# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'django-insecure-oqv&!#ek##_p9d#_oe3uxyrm-k&pvht4fm6xlk1o53hxib4k+o'
DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = [
'simple_investing.apps.SimpleInvestingConfig',
'django.contrib.admin', #Admin site
'django.contrib.auth', #An authentication system.
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.sites',
'django.contrib.staticfiles',
'allauth',
'allauth.account',
'allauth.socialaccount',
'allauth.socialaccount.providers.google',
'crispy_forms',
'avatar',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'mysite.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
AUTHENTICATION_BACKENDS = [
# Needed to login by username in Django admin, regardless of `allauth`
'django.contrib.auth.backends.ModelBackend',
# `allauth` specific authentication methods, such as login by e-mail
'allauth.account.auth_backends.AuthenticationBackend',
]
WSGI_APPLICATION = 'mysite.wsgi.application'
# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
STATIC_URL = '/static/'
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
LOGIN_REDIRECT_URL = "/"
LOGOUT_REDIRECT_URL = "/"
EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
ACCOUNT_EMAIL_VERIFICATION = "none"
SITE_ID = 1
SOCIALACCOUNT_PROVIDERS = {
'google': {
# For each OAuth based provider, either add a ``SocialApp``
# (``socialaccount`` app) containing the required client
# credentials, or list them here:
'APP': {
'client_id': '520936870130-fcg82fmcl4j0gcia2ol5c3ojq1q113tv.apps.googleusercontent.com',
'secret': 'it1jqY-9LsIdAAKWQw9VZX_X',
'key': ''
}
},
}
Hereunder, is a picture of my application root's directory.
In addition, hereunder is a picture of the problem