Preparation for start from scratch:
sudo mkdir /var/run/tuvermind
sudo chown user:www-data /var/run/tuvermind
sudo mkdir /tmp/tuvermind
sudo chown user:www-data /tmp/tuvermind
sudo mkdir /var/www/tuvermind
sudo chown /var/www/tuvermind
mkdir /var/www/tuvermind/static /var/www/tuvermind/media
python3 manage.py migrate
python3 manage.py collectstatic