HUE HTTPS not getting enabled error: Broken Pipe

I have problems enabling HTTPS access to my hue application. I have provided the path for the certificate and key file correctly in the hue.ini file as given below:

ssl_certificate=/root/certs_keys/domain_latest.crt
ssl_private_key=/root/certs_keys/domain_latest.key

But I keep on getting the following error :

    [16/May/2018 12:23:46] "GET / HTTP/1.1" 403 139346
[16/May/2018 12:23:47] "GET /static/desktop/css/roboto.91c15bd9ce7b.css HTTP/1.1" 403 139388
Traceback (most recent call last):
  File "/usr/lib64/python2.7/wsgiref/handlers.py", line 86, in run
    self.finish_response()
  File "/usr/lib64/python2.7/wsgiref/handlers.py", line 128, in finish_response
    self.write(data)
  File "/usr/lib64/python2.7/wsgiref/handlers.py", line 217, in write
    self._write(data)
  File "/usr/lib64/python2.7/socket.py", line 324, in write
    self.flush()
  File "/usr/lib64/python2.7/socket.py", line 303, in flush
    self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 32] Broken pipe
[16/May/2018 12:23:47] "GET /static/desktop/css/roboto.91c15bd9ce7b.css HTTP/1.1" 500 59
----------------------------------------
Exception happened during processing of request from ('172.21.2.167', 50064)
Traceback (most recent call last):
  File "/usr/lib64/python2.7/SocketServer.py", line 593, in process_request_thread
    self.finish_request(request, client_address)
  File "/usr/lib64/python2.7/SocketServer.py", line 334, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/opt/hue4/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/servers/basehttp.py", line 126, in __init__
    super(WSGIRequestHandler, self).__init__(*args, **kwargs)
  File "/usr/lib64/python2.7/SocketServer.py", line 651, in __init__
    self.finish()
  File "/usr/lib64/python2.7/SocketServer.py", line 710, in finish
    self.wfile.close()
  File "/usr/lib64/python2.7/socket.py", line 279, in close
    self.flush()
  File "/usr/lib64/python2.7/socket.py", line 303, in flush
    self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 32] Broken pipe
----------------------------------------
[16/May/2018 12:23:47] "GET /static/desktop/ext/css/font-awesome.min.269550530cc1.css HTTP/1.1" 403 139402
Traceback (most recent call last):
  File "/usr/lib64/python2.7/wsgiref/handlers.py", line 86, in run
    self.finish_response()
  File "/usr/lib64/python2.7/wsgiref/handlers.py", line 128, in finish_response
    self.write(data)
  File "/usr/lib64/python2.7/wsgiref/handlers.py", line 217, in write
    self._write(data)
  File "/usr/lib64/python2.7/socket.py", line 324, in write
    self.flush()
  File "/usr/lib64/python2.7/socket.py", line 303, in flush
    self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 32] Broken pipe

Need help on this!