Setting up django on nginx, ran in error: "can't chdir to ..."

I was following this tutorial: https://www.howtoforge.com/how-to-install-django-on-centos-8/ on how to set up django on nginx with gunicorn but ran into the following error:

[user@centos-s-1vcpu-2gb-fra1-01 ~]$ systemctl status django
● django.service - django daemon
   Loaded: loaded (/etc/systemd/system/django.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Wed 2020-09-02 19:44:16 UTC; 6s ago
  Process: 4615 ExecStart=/usr/local/bin/gunicorn --workers 3 --bind unix:/home/user/djangoprojects/djangoproject.sock djangoproject.wsgi:application (code=exited, status=1/FAILURE)
 Main PID: 4615 (code=exited, status=1/FAILURE)

Sep 02 19:44:15 centos-s-1vcpu-2gb-fra1-01 systemd[1]: Started django daemon.
Sep 02 19:44:16 centos-s-1vcpu-2gb-fra1-01 gunicorn[4615]: Error: can't chdir to '/home/user/djangoprojects'
Sep 02 19:44:16 centos-s-1vcpu-2gb-fra1-01 systemd[1]: django.service: Main process exited, code=exited, status=1/FAILURE
Sep 02 19:44:16 centos-s-1vcpu-2gb-fra1-01 systemd[1]: django.service: Failed with result 'exit-code'.

Can someone help me out? I tried a lot of things and researched for a long time, but nothing helped.

Thats the service file:

[Unit]
Description=django daemon
After=network.target

[Service]
User=nginx
Group=nginx
WorkingDirectory=/home/user/djangoprojects/
ExecStart=/usr/local/bin/gunicorn --workers 3 --bind unix:/home/user/djangoprojects/djangoproject.sock djangoproject.wsgi:application

[Install]
WantedBy=multi-user.target