so, in my project django, I have:
models.py
class User(AbstractUser):
username = models.CharField(max_length=30,unique=True)
email = models.EmailField(max_length=254, unique=True)
is_active = models.BooleanField(default=False)
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['username']
after creating a superuser and trying to login in django, I see the error:

same will happen trying to login into my site, after using a view to login, I can see "USER DOES NOT EXIST" in admin login
I think because you are setting 'is_active' to False as default, while it shall be True