500 when accesses /interfaces/1/

[PiggyRan]

The log shows below:

ERROR:django.request:Internal Server Error: /interfaces/1/
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 115, in get_response
    response = callback(request, *callback_args, **callback_kwargs)
  File "/var/www/webvirtmgr/interfaces/views.py", line 54, in interfaces
    return render_to_response('interfaces.html', locals(), context_instance=RequestContext(request))
  File "/usr/local/lib/python2.7/dist-packages/django/shortcuts/__init__.py", line 29, in render_to_response
    return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/template/loader.py", line 177, in render_to_string
    return t.render(context_instance)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 140, in render
    return self._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 124, in render
    return compiled_parent._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 63, in render
    result = block.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py", line 285, in render
    return nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py", line 196, in render
    nodelist.append(node.render(context))
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py", line 426, in render
    raise e
NoReverseMatch: Reverse for 'interface' with arguments '(u'1', 'br-0a42eb1d9f48')' and keyword arguments '{}' not found.

How to fix it? Thanks.