Rebooted server via ubuntu command line, now website returns 502

Hi, My website has been running since I deployed it yesterday. I rebooted the server this morning, and now the website won’t load. Im using nginx and gunicorn - i have tested both and the tests were successful.

What reasons are there that the website now wont load, after nothing was changed during the reboot

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502 Bad Gateway means nginx is unable to communicate to gunicorn.

Make sure that gunicorn is running on the expected port. You can verify it using :

netstat -tulpn

If you find it running and the website still shows 502, try restarting nginx and gunicorn.

Let me know if you have any further questions.