Internal Server reason

Internal Server reason
Traceback:
Traceback (most recent call last):
  File "/home/hc/prod/venv/lib/python2.6/site-packages/gunicorn-0.12.0-py2.6.egg/gunicorn/workers/sync.py", line 97, in handle_request
    respiter = self.wsgi(environ, resp.start_response)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/core/handlers/wsgi.py", line 248, in __call__
    response = self.get_response(request)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/core/handlers/base.py", line 141, in get_response
    return self.handle_uncaught_exception(request, resolver, sys.exc_info())
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/core/handlers/base.py", line 165, in handle_uncaught_exception
    return debug.technical_500_response(request, *exc_info)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/views/debug.py", line 59, in technical_500_response
    html = reporter.get_traceback_html()
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/views/debug.py", line 141, in get_traceback_html
    return t.render(c)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/template/__init__.py", line 173, in render
    return self._render(context)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/template/__init__.py", line 167, in _render
    return self.nodelist.render(context)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/template/__init__.py", line 796, in render
    bits.append(self.render_node(node, context))
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/template/debug.py", line 72, in render_node
    result = node.render(context)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/template/debug.py", line 89, in render
    output = self.filter_expression.resolve(context)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/template/__init__.py", line 579, in resolve
    new_obj = func(obj, *arg_vals)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/template/defaultfilters.py", line 682, in date
    return format(value, arg)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/dateformat.py", line 281, in format
    return df.format(format_string)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/dateformat.py", line 30, in format
    pieces.append(force_unicode(getattr(self, piece)()))
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/dateformat.py", line 187, in r
    return self.format('D, j M Y H:i:s O')
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/dateformat.py", line 30, in format
    pieces.append(force_unicode(getattr(self, piece)()))
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/encoding.py", line 66, in force_unicode
    s = unicode(s)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/functional.py", line 206, in __unicode_cast
    return self.__func(*self.__args, **self.__kw)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/translation/__init__.py", line 55, in ugettext
    return real_ugettext(message)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/functional.py", line 55, in _curried
    return _curried_func(*(args+moreargs), **dict(kwargs, **morekwargs))
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/translation/__init__.py", line 36, in delayed_loader
    return getattr(trans, real_name)(*args, **kwargs)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/translation/trans_real.py", line 276, in ugettext
    return do_translate(message, 'ugettext')
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/translation/trans_real.py", line 266, in do_translate
    _default = translation(settings.LANGUAGE_CODE)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/translation/trans_real.py", line 176, in translation
    default_translation = _fetch(settings.LANGUAGE_CODE)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/translation/trans_real.py", line 159, in _fetch
    app = import_module(appname)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/contrib/admin/__init__.py", line 1, in
    from django.contrib.admin.helpers import ACTION_CHECKBOX_NAME
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/contrib/admin/helpers.py", line 1, in
    from django import forms
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/forms/__init__.py", line 17, in
    from models import *
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/forms/models.py", line 6, in
    from django.db import connections
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/db/__init__.py", line 77, in
    connection = connections[DEFAULT_DB_ALIAS]
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/db/utils.py", line 92, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/home/hc/prod/venv/lib/python2.6/site-packages/Django-1.2.5-py2.6.egg/django/db/utils.py", line 50, in load_backend
    raise ImproperlyConfigured(error_msg)
TemplateSyntaxError: Caught ImproperlyConfigured while rendering: 'django.db.backends.postgresql_psycopg2' isn't an available database backend.
Try using django.db.backends.XXX, where XXX is one of:
    'dummy', 'mysql', 'oracle', 'postgresql', 'postgresql_psycopg2', 'sqlite3'
Error was: cannot import name utils