Backticks in manual override flag explanation

Environment:


Request Method: POST
Request URL: http://104.236.238.118/assessment/new_assessment/

Django Version: 1.7.2
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'preaalgo',
 'assessment',
 'bootstrap3')
Installed Middleware:
('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/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
  111.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/django/prea/assessment/views.py" in new_assessment
  105.             raise ValidationError('A problem occurred while processing the form data. Please try again.')

Exception Type: ValidationError at /assessment/new_assessment/
Exception Value: [u'A problem occurred while processing the form data. Please try again.']