Good Instruction for Openbazaar Server installation for VPS

Hi guys,

I am looking for a good installation Openbazaar VPS instruction. Previously I used https://openbazaar.zendesk.com/hc/en-us/articles/207852873-Guide-to-Setting-up-OpenBazaar-Server-on-a-VPS but it didn't work although I tried 3 times from scratch Huh

Currently I am using a digital ocean VPS and when starting the Openbazaar Server I get this:

Quote

self.listen_heartbeat(heartbeat_port)
File "/usr/local/lib/python2.7/dist-packages/obelisk/client.py", line 123, in listen_heartbeat
s = ZmqSocket(frame_received, 3, type=zmq.SUB)
File "/usr/local/lib/python2.7/dist-packages/obelisk/zmq_fallback.py", line 20, in __init__
self.public_key, self.secret_key = zmq.curve_keypair()
File "zmq/backend/cython/utils.pyx", line 60, in zmq.backend.cython.utils.curve_keypair (zmq/backend/cython/utils.c:923)
File "/usr/local/lib/python2.7/dist-packages/zmq/error.py", line 135, in _check_rc
raise ZMQError(errno)
zmq.error.ZMQError: Operation not supported

At slack someone recommended to use this tutorial https://slack-files.com/T02FPGBKB-F0KJU1CLX-cbbcf8a02c?nojsmode=1 but before I start from scratch again I want to know what the error above means. Maybe someone has a clue...