InterfaceError (binding parameter) while creating a model

class Subscriptions(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    cars = JSONField(default=list)

def make_subscribe(request, make):
    subs, created = Subscriptions.objects.get_or_create(user=request.user)
    subs.cars.append({'make': make, 'reviews': True, 'listings': True})
    return redirect("reviews:model-select", make=make)

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/reviews/BMW/subscribe/

Django Version: 1.11.1
Python Version: 3.6.1
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.humanize',
 'import_export',
 'vote',
 'django_countries',
 'reviews.apps.ReviewsConfig',
 'home.apps.HomeConfig',
 'marketplace.apps.MarketplaceConfig']
Installed 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']



Traceback:

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\query.py" in get_or_create
  464.             return self.get(**lookup), False

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\query.py" in get
  380.                 self.model._meta.object_name

During handling of the above exception (Subscriptions matching query does not exist.), another exception occurred:

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\backends\utils.py" in execute
  65.                 return self.cursor.execute(sql, params)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\backends\sqlite3\base.py" in execute
  328.         return Database.Cursor.execute(self, query, params)

The above exception (Error binding parameter 1 - probably unsupported type.) was the direct cause of the following exception:

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\backends\utils.py" in execute
  80.             return super(CursorDebugWrapper, self).execute(sql, params)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\backends\utils.py" in execute
  65.                 return self.cursor.execute(sql, params)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\utils.py" in __exit__
  94.                 six.reraise(dj_exc_type, dj_exc_value, traceback)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\utils\six.py" in reraise
  685.             raise value.with_traceback(tb)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\backends\utils.py" in execute
  65.                 return self.cursor.execute(sql, params)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\backends\sqlite3\base.py" in execute
  328.         return Database.Cursor.execute(self, query, params)

During handling of the above exception (Error binding parameter 1 - probably unsupported type.), another exception occurred:

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\core\handlers\exception.py" in inner
  41.             response = get_response(request)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\core\handlers\base.py" in _get_response
  187.                 response = self.process_exception_by_middleware(e, request)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\core\handlers\base.py" in _get_response
  185.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "C:\Users\And\Desktop\steerr\reviews\views.py" in make_subscribe
  177.  subs = Subscriptions.objects.get_or_create(user=request.user)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\manager.py" in manager_method
  85.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\query.py" in get_or_create
  466.             return self._create_object_from_params(lookup, params)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\query.py" in _create_object_from_params
  498.                 obj = self.create(**params)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\query.py" in create
  394.         obj.save(force_insert=True, using=self.db)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\base.py" in save
  806.                        force_update=force_update, update_fields=update_fields)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\base.py" in save_base
  836.             updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\base.py" in _save_table
  922.             result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\base.py" in _do_insert
  961.                                using=using, raw=raw)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\manager.py" in manager_method
  85.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\query.py" in _insert
  1061.         return query.get_compiler(using=using).execute_sql(return_id)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\models\sql\compiler.py" in execute_sql
  1099.                 cursor.execute(sql, params)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\backends\utils.py" in execute
  84.             sql = self.db.ops.last_executed_query(self.cursor, sql, params)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\backends\sqlite3\operations.py" in last_executed_query
  135.                 params = self._quote_params_for_last_executed_query(params)

File "C:\Program Files (x86)\Python36-32\lib\site-packages\django-1.11.1-py3.6.egg\django\db\backends\sqlite3\operations.py" in _quote_params_for_last_executed_query
  124.             return cursor.execute(sql, params).fetchone()

Exception Type: InterfaceError at /reviews/BMW/subscribe/
Exception Value: Error binding parameter 1 - probably unsupported type.