 Traceback (most recent call last):


 "kivy/graphics/transformation.pyx", line 301, in kivy.graphics.transformation.Matrix.view_clip
 ValueError: invalid frustrum

Traceback (most recent call last):


 "/usr/lib/python3.6/wsgiref/handlers.py", line 138, in run

self.finish_response()


 "/usr/lib/python3.6/wsgiref/handlers.py", line 180, in finish_response

self.write(data)


 "/usr/lib/python3.6/wsgiref/handlers.py", line 274, in write

self.send_headers()


 "/usr/lib/python3.6/wsgiref/handlers.py", line 332, in send_headers

self.send_preamble()


 "/usr/lib/python3.6/wsgiref/handlers.py", line 252, in send_preamble

self._write(('HTTP/%s %s\r\n' % (self.http_version,self.status)).encode('iso-8859-1'))


 "/usr/lib/python3.6/wsgiref/handlers.py", line 453, in _write

result = self.stdout.write(data)


 "/usr/lib/python3.6/socketserver.py", line 803, in write

self._sock.sendall(b)
ConnectionResetError: [Errno 104] Connection reset by peer
