Error while install indigo theme

i try to install indigo theme i get this error :

SyntaxError: invalid syntax
Error: Command failed with status 1: docker-compose -f /root/.local/share/tutor/env/local/docker-compose.yml -f /root/.local/share/tutor/env/local/docker-compose.prod.yml --project-name tutor_local -f /root/.local/share/tutor/env/local/docker-compose.jobs.yml run --rm lms-job sh -e -c 
export DJANGO_SETTINGS_MODULE=$SERVICE_VARIANT.envs.$SETTINGS
echo "Loading settings $DJANGO_SETTINGS_MODULE"

echo "Assigning theme indigo to 'docker'..."
./manage.py lms shell -c "
from django.contrib.sites.models import Site
site, _ = Site.objects.get_or_create(domain=''docker'')
if not site.name:
    site.name = ''docker''
    site.save()
site.themes.all().delete()
site.themes.create(theme_dir_name='indigo')"