exception calling self._socket.sendall() - broken pipe

[creatica-soft]

Exception happened during processing of request from ('10.244.3.1', 39114)
Traceback (most recent call last):
File "/usr/local/lib/python3.6/socketserver.py", line 654, in process_request_thread
self.finish_request(request, client_address)
File "/usr/local/lib/python3.6/socketserver.py", line 364, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "/usr/local/lib/python3.6/socketserver.py", line 724, in init
self.handle()
File "/usr/local/lib/python3.6/http/server.py", line 418, in handle
self.handle_one_request()
File "/usr/local/lib/python3.6/http/server.py", line 406, in handle_one_request
method()
File "/usr/local/lib/python3.6/site-packages/prometheus_client/exposition.py", line 102, in do_GET
self.wfile.write(output)
File "/usr/local/lib/python3.6/socketserver.py", line 803, in write
self._sock.sendall(b)
BrokenPipeError: [Errno 32] Broken pipe