Not sure if this is the right forum, but I'm hoping someone can help me.

We had a web app running on our web server for a while now. Suddenly it stopped working and displays a 502 error - Web server received an invalid response while acting as a gateway or proxy server.

I have never seen this type of error and I have no Idea how to work it (I'm just an entry level programmer). I did manage to get the DB and the original code and they work fine on a local environment.

  • Start by checking web server logs
    – Dan
    Jun 25, 2015 at 19:44

1 Answer 1


502 is a HTTP code. That means temporary unavailable. Is the web server still running? Check the web server logs

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