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Heroku website shows Server Error (500) when opened

every time I try to open my website on heroku, it shows the error message
Server Error (500).
All my static files are correctly setup (I know this because I ran python3 manage.py collectstatic).
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.1/howto/static-files/
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
STATIC_ROOT = os.path.join(BASE_DIR, 'static')
STATIC_URL = '/static/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'
And my debug is set to false
I forgot to post an image of my logs, this is what it says;

How to serve user uploaded images with Django on Heroku in production

In my website an user can upload images. This works fine in development when DEBUG=True, but if I set it to False, the images give error "Not found". I understand that the images disappear after 30 minutes of inactivity, but for me they aren't working at all.
I have Whitenoise installed on my settings.py middleware and on requirements.txt.
On settings.py I also have these lines:
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
STATIC_URL = '/static/'
STATICFILES_DIRS = (
os.path.join(BASE_DIR, 'static'),
)
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
And on urls.py I have this:
if settings.DEBUG:
urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
The user uploads the files to an ImageField.
What do I have to change to make the user uploaded images also work on production? As the tile says, I'm deploying the project to Heroku.

CSS is not showing in the admin page -Django

So I upload my site to digitalocean and when I went to the admin page the CSS was not showing
I visit all these sites but nothing seems to work
Django doc-static files
Pythonanywhere-DjangoStaticFiles
StackOverflow -why my django admin site does not have the css style
I set up my STATIC_ROOT and STATIC_URL, and then I ran
python manage.py collectstatic
And here is my seting
STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR, '/home/django/django_project/django_project/static')
STATICFILES_DIRS = [
os.path.join(BASE_DIR, 'static/'),
]

You are specifying an Absolute Path for your join.
os.path.join(BASE_DIR, arg2) means join the current directory that is being executed and append the second argument.

add these lines into your settings.py file
STATICFILES_DIRS = (
os.path.join(BASE_DIR, 'static/'),
)

Can't use django-compress with Heroku

I have a Django 1.9.6 site deployed to Heroku. When DEBUG=False I was getting a server error (500). The logs contained no useful information, so I tried running it with DEBUG=True. Now it works fine. I think the issue may be tied to my scss file processing, which really confuses me and I was struggling with. I recently--among other things--added COMPRESS_OFFLINE = True to my settings files, and commenting that out seems to alleviate the problem (although then my scss files don't work).
Some of my static settings.py. Let me know if you need more--so much of this is a mystery to me. I was trying to follow this as best as I could.
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
MEDIA_URL = "/media/"
MEDIA_ROOT = os.path.join(BASE_DIR, "media/")
STATICFILES_FINDERS = (
'django.contrib.staticfiles.finders.FileSystemFinder',
'django.contrib.staticfiles.finders.AppDirectoriesFinder',
# other finders..
'compressor.finders.CompressorFinder',
)
STATICFILES_STORAGE = 'whitenoise.django.GzipManifestStaticFilesStorage'
MEDIA_URL = "/media/"
MEDIA_ROOT = os.path.join(BASE_DIR, "media/")
in urls.py:
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
urlpatterns += [
url(r'^media/(?P<path>.*)$', serve, {
'document_root': settings.MEDIA_ROOT
}),
]
urlpatterns += staticfiles_urlpatterns()
EDIT:
I've gotten logging to work, and I've confirmed that it's a compress error. I'm getting the error message:
Internal Server Error: /
OfflineGenerationError at /
You have offline compression enabled but key "171c3b7763dbc51a465d996f7d920cf5" is missing from offline manifest. You may need to run "python manage.py compress".
which is the same thing I've gotten locally, except running the suggested command solved it. Running heroku run python manage.py compress doesn't have an effect (no errors running it, though)

The manifest generated by compress was stored in my .gitignore and therefore the one on production was stale. Adding it to the git repository fixed everything.

First off set value for ALLOW_HOSTS, this can't be blank when debug is off.
ALLOWED_HOSTS = ['.mydomain.com', '.2nddomain.com']
Because you use compress plugins:
SET
COMPRESS_ENABLED = True
COMPRESS_OFFLINE = True
# this where the collectstatic and compress result output
# point your static alias to here
STATIC_ROOT = os.path.join(BASE_DIR, 'static')
# in your production env: activate ur virtual environment then run the compress statics command
python manage.py compress
python manage.py collectstatic
When Debug is off all exceptions is suppressed for security reason, set admin email in the setting file to let django email all un-caught exception
SERVER_EMAIL = 'ur#from-email-address.com'
ADMINS = (
('Exceptions Email', 'destination#email.com'),
)

Add this to your settings.py inside the loggers section and it should give you more information (this is what helped point me into solving the same problem).
"django.request": {
"handlers": ["console"],
"level": "ERROR",
"propagate": True
}
For what it's worth, here are my similar settings.py settings:
MEDIA_URL = "http://%s.s3.amazonaws.com/" % (AWS_STORAGE_BUCKET_NAME)
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
STATIC_ROOT = 'staticfiles'
STATIC_URL = os.getenv("DJANGO_STATIC_HOST", "") + "/static/"
if DEBUG:
STATIC_URL = "/static/"
STATICFILES_DIRS = (
os.path.join(BASE_DIR, 'static'),
)
Note: I have no MEDIA_ROOT or STATICFILES_FINDERS and I'm also using Whitenoise with CloudFront for my static file handling

Today I tried to share a website with 'PythonAnywhere'. I have encountered the same problem and have fixed the problem with 'Allowed_Host'.
https://docs.djangoproject.com/en/1.10/ref/settings/#allowed-hosts
settings.py
ALLOWED_HOSTS = ['*']

Unable to perform collectstatic

I am new to django ! When I use the command python manage.py collectstatic I get this error
django.core.exceptions.ImproperlyConfigured: You're using the staticfiles app without having set the STATIC_ROOT setting to a filesystem path
But I can successfully run the server .
My static files declarations are :
STATIC_ROOT = ''
STATIC_URL = '/static/'
STATICFILES_DIRS = (
('assets', os.path.join(PROJECT_DIR, '../static')),
)
and debug is set to true
DEBUG = True
How can I fix this? Else am missing any installation packages ?

Try this,
PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
STATIC_ROOT = os.path.join(PROJECT_DIR, 'static')
Look at https://docs.djangoproject.com/en/dev/ref/settings/#std:setting-STATIC_ROOT

You must have to give path in STATIC_ROOT in settings.py where all your static files are collected as for example:-
STATIC_ROOT = "app-root/repo/wsgi/static"
STATIC_URL = '/static/'
STATICFILES_DIRS = (
('assets', 'app-root/repo/wsgi/openshift/static'),
)

you can create 'static' folder in any subfolder and have required files in it.
In settings.py add the following lines of code:
PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
STATIC_ROOT = os.path.join(PROJECT_DIR, 'static')
STATIC_URL = '/static/'
After running
python manage.py collectstatic
a new static folder will be created in your parent App folder

well had this error as well. I fixed:
STATIC_URL = '/static/'
if DEBUG:
STATICFILES_DIRS = [
os.path.join(BASE_DIR, 'static'),
]
else:
STATIC_ROOT = os.path.join(BASE_DIR,'static')
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')

STATIC_ROOT = os.path.join(BASE_DIR, 'assest')
STATICFILES_DIR = [
os.path.join(BASE_DIR, 'static')
]

I had to put STATIC_ROOT and STATIC_URL above the STATICFILES_DIRS declaration.

STATIC_ROOT = "/var/www/YourSiteFolder/static/"
STATIC_URL = '/static/'
look at https://docs.djangoproject.com/en/1.11/howto/static-files/#deployment

STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR,'static')
This works for me

if you want to load static files rather than admin panel files or getting errors while loading webpage static files like CSS js etc
I suggest you change the folder name of 'static' to 'staticfiles'
and then add this code in your settings.py
STATICFILES_DIRS = (
os.path.join(BASE_DIR, 'staticfiles'),
)
then after run python manage.py collectstatic
Then the problem will be fixed