[proxy:error]Connection refused: AH00957: HTTP: attempt to connect to 127.0.0.1:6000 (127.0.0.1) failed

netstat -tulpn | grep uni
tcp        0      0 127.0.0.1:6000          0.0.0.0:*               LISTEN      237061/unicorn mast
netstat -tulpn | grep postgre
tcp        0      0 127.0.0.1:45432         0.0.0.0:*               LISTEN      1979/postgres
ps aux | grep jobs:work
openpro+ 236941  8.1  1.0 625296 281556 ?       Ssl  18:35   0:13 /opt/openproject/vendor/bundle/ruby/2.6.0/bin/rake jobs:work
root     237593  0.0  0.0  14424  1024 pts/0    S+   18:37   0:00 grep jobs:work
ps aux | grep unicorn
openpro+ 237061  5.5  1.1 647952 291396 ?       Sl   18:35   0:12 unicorn master --config-file config/unicorn.rb --host 127.0.0.1 --port 6000 --env production
openpro+ 237188  0.0  1.0 647952 277644 ?       Sl   18:35   0:00 unicorn worker[0] --config-file config/unicorn.rb --host 127.0.0.1 --port 6000 --env production
openpro+ 237190  0.0  1.0 647952 277644 ?       Sl   18:35   0:00 unicorn worker[1] --config-file config/unicorn.rb --host 127.0.0.1 --port 6000 --env production
openpro+ 237192  0.0  1.0 647952 277644 ?       Sl   18:35   0:00 unicorn worker[2] --config-file config/unicorn.rb --host 127.0.0.1 --port 6000 --env production
openpro+ 237194  0.0  1.0 647952 277648 ?       Sl   18:35   0:00 unicorn worker[3] --config-file config/unicorn.rb --host 127.0.0.1 --port 6000 --env production
root     237852  0.0  0.0  14424  1064 pts/0    R+   18:38   0:00 grep unicorn
openproject run web
openproject run bundle exec rake db:migrate
openproject configure # Take values form installer.dat
cat << 'EOF' >/etc/openproject/installer.dat
postgres/autoinstall reuse
postgres/db_host 127.0.0.1
postgres/db_port 5432
postgres/db_name openproject
postgres/db_username openproject
postgres/db_password  #################################
server/autoinstall install
server/variant apache2

server/hostname   #################################
server/server_path_prefix 
server/ssl no
server/ssl_cert  #################################
server/ssl_key  #################################
server/ssl_ca  #################################
repositories/api-key #################################
repositories/svn-install install
repositories/apache-wrapper-token  #################################
repositories/svn-path /var/db/openproject/svn
repositories/git-install install
repositories/git-path /var/db/openproject/git
repositories/git-http-backend /usr/lib/git-core/git-http-backend/
smtp/autoinstall smtp
smtp/authentication login
smtp/host   #################################
smtp/port 587
smtp/username 
smtp/password 
smtp/domain   #################################
smtp/admin_email   #################################
memcached/autoinstall install
postgres/addon_version v1
EOF