herokuでdeploy branchでのエラー

Question

前提

herokuでhttps://note.com/on_bass/n/n0495484a2b2b を参考にdeploy branchまで進めましたがどうしてもエラーが出てきてしまいます。

発生している問題・エラーメッセージ

-----> Building on the Heroku-20 stack
-----> Using buildpack: heroku/python
-----> Python app detected
-----> Using Python version specified in runtime.txt
 !     Python has released a security update! Please consider upgrading to python-3.8.10
       Learn More: https://devcenter.heroku.com/articles/python-runtimes
-----> Installing python-3.8.5
-----> Installing pip 20.2.4, setuptools 47.1.1 and wheel 0.36.2
-----> Installing SQLite3
-----> Installing requirements with pip
       Collecting asgiref==3.3.4
         Downloading asgiref-3.3.4-py3-none-any.whl (22 kB)
       Collecting dj-database-url==0.5.0
         Downloading dj_database_url-0.5.0-py2.py3-none-any.whl (5.5 kB)
       Collecting Django==3.2
         Downloading Django-3.2-py3-none-any.whl (7.9 MB)
       Collecting django-heroku==0.3.1
         Downloading django_heroku-0.3.1-py2.py3-none-any.whl (6.2 kB)
       Collecting et-xmlfile==1.0.1
         Downloading et_xmlfile-1.0.1.tar.gz (8.4 kB)
       Collecting gunicorn==20.1.0
         Downloading gunicorn-20.1.0-py3-none-any.whl (79 kB)
       Collecting jdcal==1.4.1
         Downloading jdcal-1.4.1-py2.py3-none-any.whl (9.5 kB)
       Collecting openpyxl==3.0.5
         Downloading openpyxl-3.0.5-py2.py3-none-any.whl (242 kB)
       Collecting psycopg2==2.8.6
         Downloading psycopg2-2.8.6.tar.gz (383 kB)
       Collecting pytz==2021.1
         Downloading pytz-2021.1-py2.py3-none-any.whl (510 kB)
       Collecting sqlparse==0.4.1
         Downloading sqlparse-0.4.1-py3-none-any.whl (42 kB)
       Collecting whitenoise==5.2.0
         Downloading whitenoise-5.2.0-py2.py3-none-any.whl (19 kB)
       Building wheels for collected packages: et-xmlfile, psycopg2
         Building wheel for et-xmlfile (setup.py): started
         Building wheel for et-xmlfile (setup.py): finished with status 'done'
         Created wheel for et-xmlfile: filename=et_xmlfile-1.0.1-py3-none-any.whl size=8913 sha256=fdf432cf2dfbe081e12e7313785a481d6c89c21865704001eeb8621a0dae3d23
         Stored in directory: /tmp/pip-ephem-wheel-cache-fprvxwu6/wheels/6e/df/38/abda47b884e3e25f9f9b6430e5ce44c47670758a50c0c51759
         Building wheel for psycopg2 (setup.py): started
         Building wheel for psycopg2 (setup.py): finished with status 'done'
         Created wheel for psycopg2: filename=psycopg2-2.8.6-cp38-cp38-linux_x86_64.whl size=529005 sha256=87bfd445779ad09e21116ddbde744bcc9e0191f3e12cbdd2db0c05ff823142b8
         Stored in directory: /tmp/pip-ephem-wheel-cache-fprvxwu6/wheels/70/5e/69/8a020d78c09043156a7df0b64529e460fbd922ca065c4b795c
       Successfully built et-xmlfile psycopg2
       Installing collected packages: asgiref, dj-database-url, pytz, sqlparse, Django, psycopg2, whitenoise, django-heroku, et-xmlfile, gunicorn, jdcal, openpyxl
       Successfully installed Django-3.2 asgiref-3.3.4 dj-database-url-0.5.0 django-heroku-0.3.1 et-xmlfile-1.0.1 gunicorn-20.1.0 jdcal-1.4.1 openpyxl-3.0.5 psycopg2-2.8.6 pytz-2021.1 sqlparse-0.4.1 whitenoise-5.2.0
-----> $ python manage.py collectstatic --noinput
       Traceback (most recent call last):
         File "manage.py", line 22, in <module>
           main()
         File "manage.py", line 18, in main
           execute_from_command_line(sys.argv)
         File "/app/.heroku/python/lib/python3.8/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
           utility.execute()
         File "/app/.heroku/python/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute
           django.setup()
         File "/app/.heroku/python/lib/python3.8/site-packages/django/__init__.py", line 24, in setup
           apps.populate(settings.INSTALLED_APPS)
         File "/app/.heroku/python/lib/python3.8/site-packages/django/apps/registry.py", line 91, in populate
           app_config = AppConfig.create(entry)
         File "/app/.heroku/python/lib/python3.8/site-packages/django/apps/config.py", line 224, in create
           import_module(entry)
         File "/app/.heroku/python/lib/python3.8/importlib/__init__.py", line 127, in import_module
           return _bootstrap._gcd_import(name[level:], package, level)
         File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
         File "<frozen importlib._bootstrap>", line 991, in _find_and_load
         File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked
       ModuleNotFoundError: No module named 'crispy_forms'
 !     Error while running '$ python manage.py collectstatic --noinput'.
       See traceback above for details.
       You may need to update application code to resolve this error.
       Or, you can disable collectstatic for this application:
          $ heroku config:set DISABLE_COLLECTSTATIC=1
       https://devcenter.heroku.com/articles/django-assets
 !     Push rejected, failed to compile Python app.
 !     Push failed

試したこと

$heroku config:set DISABLE_COLLECTSTATIC=1
 »   Error: Missing required flag:
 »     -a, --app APP  app to run command against
 »   See more help with --help

となります。
お忙しいところ恐れ入りますが教えていただけると幸いです。