Django Herokuにてデプロイできましたが "Server Error (500)" と表示されます

DjangoでWebアプリを制作しています。
https://qiita.com/frosty/items/66f5dff8fc723387108c
こちらのサイトを参考にデプロイしています。

herokuでは以下のコマンドは通りました。

termminal
1git push heroku master
2heroku ps:scale web=1
3heroku run python manage.py migrate
4heroku run python manage.py createsuperuser

しかし、heroku openを実行するとサイトは表示されますが全ページServer Error (500)になります。
コードは以下のような状態です。

settings
1from pathlib import Path
2import os
3import dj_database_url
4DEBUG = False
5
6
7# Build paths inside the project like this: BASE_DIR / 'subdir'.
8BASE_DIR = Path(__file__).resolve().parent.parent
9
10
11# Quick-start development settings - unsuitable for production
12# See https://docs.djangoproject.com/en/3.1/howto/deployment/checklist/
13
14# SECURITY WARNING: keep the secret key used in production secret!
15
16
17# SECURITY WARNING: don't run with debug turned on in production!
18
19
20ALLOWED_HOSTS = ['127.0.0.1','kairans.herokuapp.com']
21
22
23# Application definition
24
25INSTALLED_APPS = [
26    'django.contrib.admin',
27    'django.contrib.auth',
28    'django.contrib.contenttypes',
29    'django.contrib.sessions',
30    'django.contrib.messages',
31    'django.contrib.staticfiles',
32    'cloudinary_storage',
33    'cloudinary',
34    'django_cleanup',
35    'kairans_app.apps.KairansAppConfig',
36    'django.contrib.sites', 
37    'allauth', 
38    'allauth.account', 
39    'allauth.socialaccount', 
40]
41
42MIDDLEWARE = [
43    'django.middleware.security.SecurityMiddleware',
44    'whitenoise.middleware.WhiteNoiseMiddleware',
45    'django.contrib.sessions.middleware.SessionMiddleware',
46    'django.middleware.common.CommonMiddleware',
47    'django.middleware.csrf.CsrfViewMiddleware',
48    'django.contrib.auth.middleware.AuthenticationMiddleware',
49    'django.contrib.messages.middleware.MessageMiddleware',
50    'django.middleware.clickjacking.XFrameOptionsMiddleware',
51    
52]
53
54ROOT_URLCONF = 'config.urls'
55
56TEMPLATES = [
57    {
58        'BACKEND': 'django.template.backends.django.DjangoTemplates',
59        'DIRS': [Path(BASE_DIR, 'templates')],
60        'APP_DIRS': True,
61        'OPTIONS': {
62            'context_processors': [
63                'django.template.context_processors.debug',
64                'django.template.context_processors.request',
65                'django.contrib.auth.context_processors.auth',
66                'django.contrib.messages.context_processors.messages',
67            ],
68        },
69    },
70]
71
72WSGI_APPLICATION = 'config.wsgi.application'
73
74
75# Database
76# https://docs.djangoproject.com/en/3.1/ref/settings/#databases
77
78DATABASES = {
79    'default': {
80        'ENGINE': 'django.db.backends.postgresql_psycopg2',
81        'NAME': 'name',
82        'USER': 'user',
83        'PASSWORD': '',
84        'HOST': 'host',
85        'PORT': '',
86    }
87}
88
89
90# Password validation
91# https://docs.djangoproject.com/en/3.1/ref/settings/#auth-password-validators
92
93AUTH_PASSWORD_VALIDATORS = [
94    {
95        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
96    },
97    {
98        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
99    },
100    {
101        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
102    },
103    {
104        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
105    },
106]
107
108
109# Internationalization
110# https://docs.djangoproject.com/en/3.1/topics/i18n/
111
112LANGUAGE_CODE = 'ja'
113
114TIME_ZONE = 'Asia/Tokyo'
115
116USE_I18N = True
117
118USE_L10N = True
119
120USE_TZ = True
121
122
123# Static files (CSS, JavaScript, Images)
124# https://docs.djangoproject.com/en/3.1/howto/static-files/
125
126#CSS
127STATIC_URL = '/static/'
128STATICFILES_DIRS = [
129   os.path.join(BASE_DIR, 'static'),
130]
131
132STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
133
134AUTH_USER_MODEL = 'kairans_app.User'
135
136
137LOGIN_REDIRECT_URL = 'index'
138ACCOUNT_LOGOUT_REDIRECT_URL = '/accounts/login/'
139
140
141CLOUDINARY_STORAGE = {
142    'CLOUD_NAME': '****',
143    'API_KEY': '****',
144    'API_SECRET': '****'
145}
146
147MEDIA_URL = '/media/'
148DEFAULT_FILE_STORAGE = 'cloudinary_storage.storage.MediaCloudinaryStorage'
149
150
151EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
152#EMAIL_HOST = 'smtp.gmail.com'
153EMAIL_HOST = 'smtp.sendgrid.net'
154#EMAIL_HOST_USER = '****'
155EMAIL_HOST_USER = 'apikey'
156#EMAIL_HOST_PASSWORD = '****'
157EMAIL_HOST_PASSWORD = '****'
158EMAIL_PORT = 587
159EMAIL_USE_TLS = True
160DEFAULT_FROM_EMAIL = '****'
161
162AUTHENTICATION_BACKENDS = (
163   # Needed to login by username in Django admin, regardless of `allauth`
164   "django.contrib.auth.backends.ModelBackend",
165
166   # `allauth` specific authentication methods, such as login by e-mail
167   "allauth.account.auth_backends.AuthenticationBackend",
168)
169
170SITE_ID = 1
171
172ACCOUNT_EMAIL_REQUIRED = True 
173ACCOUNT_USERNAME_REQUIRED = True 
174ACCOUNT_SIGNUP_PASSWORD_ENTER_TWICE = True 
175ACCOUNT_SESSION_REMEMBER = True
176ACCOUNT_AUTHENTICATION_METHOD = 'email' 
177ACCOUNT_UNIQUE_EMAIL = True 
178ACCOUNT_EMAIL_VERIFICATION = 'mandatory' 
179
180
181try:
182    from .local_settings import *
183except ImportError:
184    pass
185
186if not DEBUG:
187    SECRET_KEY = os.environ['SECRET_KEY']
188    import django_heroku 
189    django_heroku.settings(locals()) 
190
191db_from_env = dj_database_url.config(conn_max_age=600, ssl_require=True)
192DATABASES['default'].update(db_from_env)
193

herokuのログは以下のようになっていましたが、何が原因なのかわかりませんでした。

terminal
12021-05-23T01:17:50.373817+00:00 app[web.1]: 10.45.25.242 - - [23/May/2021:10:17:50 +0900] "GET / HTTP/1.1" 500 145 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36"
22021-05-23T01:17:50.378278+00:00 heroku[router]: at=info method=GET path="/" host=kairans.herokuapp.com request_id=04db8619-6827-426a-9fd7-2e12c5cc6be5 fwd="49.251.90.26" dyno=web.1 connect=1ms service=1101ms status=500 bytes=403 protocol=https
32021-05-23T01:17:51.164517+00:00 app[web.1]: 10.45.25.242 - - [23/May/2021:10:17:51 +0900] "GET /favicon.ico HTTP/1.1" 500 145 "https://kairans.herokuapp.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36"
42021-05-23T01:17:51.169246+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=kairans.herokuapp.com request_id=7dde5076-4ce5-418d-a8b0-f4d0664a8204 fwd="49.251.90.26" dyno=web.1 connect=1ms service=113ms status=500 bytes=389 protocol=https

faviconの拡張子を.pmgから.icoに変更したりしましたが変わりませんでした。
よろしくお願いします。