May  8 20:51:41 ip-172-31-30-25 [service_variant=lms][django.request][env:sandbox] ERROR [ip-172-31-30-25  10365] [base.py:256] - Internal Server Error: /courses/course-v1:Tamoe+CC02+2016/instructor/api/get_issued_certificates/
Traceback (most recent call last):
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 132, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/newrelic-2.56.0.42/newrelic/hooks/framework_django.py", line 499, in wrapper
    return wrapped(*args, **kwargs)
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/utils/decorators.py", line 110, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/django/views/decorators/cache.py", line 43, in _cache_controlled
    response = viewfunc(request, *args, **kw)
  File "/edx/app/edxapp/edx-platform/lms/djangoapps/instructor/views/api.py", line 239, in wrapped
    return func(*args, **kwargs)
  File "/edx/app/edxapp/edx-platform/lms/djangoapps/instructor/views/api.py", line 1213, in get_issued_certificates
    data_rows
  File "/edx/app/edxapp/edx-platform/lms/djangoapps/instructor_analytics/csvs.py", line 27, in create_csv_response
    csvwriter.writerow(header)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xf3' in position 16: ordinal not in range(128)