try
/opt/nailgun/bin/manage.py dropdb /opt/nailgun/bin/manage.py syncdb /opt/nailgun/bin/manage.py loaddefault
this will purge and reset your db
try
/opt/nailgun/ bin/manage. py dropdb bin/manage. py syncdb bin/manage. py loaddefault
/opt/nailgun/
/opt/nailgun/
this will purge and reset your db