Not correct scope for accessing events

Question

HttpError at /calendar <HttpError 403 when requesting https://www.googleapis.com/calendar/v3/calendars/primary/events?singleEvents=true&orderBy=startTime&alt=json returned "Request had insufficient authentication scopes.". Details: "[{'message': 'Insufficient Permission', 'domain': 'global', 'reason': 'insufficientPermissions'}]"> Request Method: GET Request URL: http://localhost:8000/calendar Django Version: 3.2.9 Exception Type: HttpError Exception Value:

Then does this after a while

RefreshError at /calendar The credentials do not contain the necessary fields need to refresh the access token. You must specify refresh_token, token_uri, client_id, and client_secret.

It seems I don't possess the right scope when accessing the calendar and it seems currently the access_token does appear.

from google.oauth2.credentials import Credentials
def get_user_events(request):
    credentials = Credentials(get_access_token(request), scopes=SCOPES)
    service = googleapiclient.discovery.build('calendar', 'v3', credentials=credentials)
    google_calendar_events = service.events().list(calendarId='primary', singleEvents=True,
                                          orderBy='startTime').execute()
    google_calendar_events = google_calendar_events.get('items', [])
    return google_calendar_events

def get_access_token(request): 
    social = request.user.social_auth.get(provider='google-oauth2') 
    return social.extra_data['access_token']

So the Scope I am using is the following

SCOPES = ['https://www.googleapis.com/auth/calendar']