No such table when creating the public user accounts by Mezzanine for Django web dev

I followed the guideline on the official website of Mezzanine (Mezzanine 1) as follow

# In myapp/models.py

from django.db import models

class MyProfile(models.Model):
    user = models.OneToOneField("auth.User")
    date_of_birth = models.DateField(null=True)
    bio = models.TextField()


# In settings.py

INSTALLED_APPS = (
    "myapp",
    "mezzanine.accounts",
    # Many more
)

ACCOUNTS_PROFILE_MODEL = "myapp.MyProfile"

But it says that: django.db.utils.OperationalError: no such table: app_myprofile. The signup page shows what I want, i.e., date of birth and the bio. But once I clicked the signip button, the error happened.

Am I missing something? Shall I also add something in the views.py file?