It seems I can only connect to the my website once from a single IP. In other words say I have two Chrome tabs open, one is my regular account, logged in as admin, and the other is incognito window, the incognito window is failing with a 502 and this is happening on all browsers.
This is the url: https://dancedj.000webhostapp.com/
Have you guys tried this?
https://www.scalescale.com/tips/nginx/502-bad-gateway-error-using-nginx/