uwadmin exception

exception

Environment:


Request Method: POST
Request URL: https://....org/publish/request/

Django Version: 1.7.5
Python Version: 2.7.5
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.messages',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.staticfiles',
 'bootstrapform',
 'pinax_theme_bootstrap',
 'account',
 'eventlog',
 'metron',
 'reversion',
 'djcelery',
 'absoluteuri',
 'uwadmin']
Installed Middleware:
['reversion.middleware.RevisionMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']


Traceback:
File "/usr/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  111.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/lib/python2.7/site-packages/django/views/generic/base.py" in view
  69.             return self.dispatch(request, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/views/generic/base.py" in dispatch
  87.         return handler(request, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/views/generic/edit.py" in post
  207.         return super(BaseCreateView, self).post(request, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/views/generic/edit.py" in post
  172.         if form.is_valid():
File "/usr/lib/python2.7/site-packages/django/forms/forms.py" in is_valid
  162.         return self.is_bound and not bool(self.errors)
File "/usr/lib/python2.7/site-packages/django/forms/forms.py" in errors
  154.             self.full_clean()
File "/usr/lib/python2.7/site-packages/django/forms/forms.py" in full_clean
  353.         self._clean_fields()
File "/usr/lib/python2.7/site-packages/django/forms/forms.py" in _clean_fields
  371.                     value = getattr(self, 'clean_%s' % name)()
File "./uwadmin/forms.py" in clean_language
  134.             return LangCode.objects.get(pk=lang_id)
File "/usr/lib/python2.7/site-packages/django/db/models/manager.py" in manager_method
  92.                 return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/db/models/query.py" in get
  345.         clone = self.filter(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/db/models/query.py" in filter
  691.         return self._filter_or_exclude(False, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/db/models/query.py" in _filter_or_exclude
  709.             clone.query.add_q(Q(*args, **kwargs))
File "/usr/lib/python2.7/site-packages/django/db/models/sql/query.py" in add_q
  1331.         clause, require_inner = self._add_q(where_part, self.used_aliases)
File "/usr/lib/python2.7/site-packages/django/db/models/sql/query.py" in _add_q
  1358.                     current_negated=current_negated, connector=connector)
File "/usr/lib/python2.7/site-packages/django/db/models/sql/query.py" in build_filter
  1230.             condition = self.build_lookup(lookups, col, value)
File "/usr/lib/python2.7/site-packages/django/db/models/sql/query.py" in build_lookup
  1138.                     return final_lookup(lhs, rhs)
File "/usr/lib/python2.7/site-packages/django/db/models/lookups.py" in __init__
  82.         self.rhs = self.get_prep_lookup()
File "/usr/lib/python2.7/site-packages/django/db/models/lookups.py" in get_prep_lookup
  85.         return self.lhs.output_field.get_prep_lookup(self.lookup_name, self.rhs)
File "/usr/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_prep_lookup
  646.             return self.get_prep_value(value)
File "/usr/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_prep_value
  915.         return int(value)

Exception Type: ValueError at /publish/request/
Exception Value: invalid literal for int() with base 10: 'aa'