[ERROR   ] [16/Mar/2018:10:25:00] ENGINE Error in HTTPServer.tick
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/cheroot/server.py", line 1317, in
start
    self.tick()
  File "/usr/lib/python3.6/site-packages/cheroot/server.py", line 1385, in tick
    s, ssl_env = self.ssl_adapter.wrap(s)
  File "/usr/lib/python3.6/site-packages/cheroot/ssl/builtin.py", line 75, in
wrap
    server_side=True)
  File "/usr/lib64/python3.6/ssl.py", line 407, in wrap_socket
    _context=self, _session=session)
  File "/usr/lib64/python3.6/ssl.py", line 814, in __init__
    self.do_handshake()
  File "/usr/lib64/python3.6/ssl.py", line 1068, in do_handshake
    self._sslobj.do_handshake()
  File "/usr/lib64/python3.6/ssl.py", line 689, in do_handshake
    self._sslobj.do_handshake()
OSError: [Errno 0] Error