Internal Server Error

The server has either erred or is incapable of performing the requested operation.

Traceback (most recent call last):
  File "/home/ubuntu/.virtualenvs/atlas-env/lib/python2.7/site-packages/webapp2.py", line 1535, in __call__
    rv = self.handle_exception(request, response, e)
  File "/home/ubuntu/.virtualenvs/atlas-env/lib/python2.7/site-packages/webapp2.py", line 1595, in handle_exception
    return handler(request, response, e)
  File "/home/ubuntu/ATLAS/atlas-appstore/apache/main.py", line 37, in handle_500
  File "/home/ubuntu/ATLAS/atlas-appstore/webstore/template.py", line 17, in render_template
  File "/home/ubuntu/.virtualenvs/atlas-env/lib/python2.7/site-packages/jinja2/environment.py", line 812, in get_template
  File "/home/ubuntu/.virtualenvs/atlas-env/lib/python2.7/site-packages/jinja2/environment.py", line 774, in _load_template
  File "/home/ubuntu/.virtualenvs/atlas-env/lib/python2.7/site-packages/jinja2/loaders.py", line 247, in get_source
  File "/home/ubuntu/.virtualenvs/atlas-env/lib/python2.7/site-packages/pkg_resources/__init__.py", line 1452, in get_resource_string
  File "/home/ubuntu/.virtualenvs/atlas-env/lib/python2.7/site-packages/pkg_resources/__init__.py", line 1572, in _get
IOError: [Errno 24] Too many open files: '/home/ubuntu/ATLAS/atlas-appstore/webstore/pages/500.html'