The web server reported a bad gateway error

Error 502
My site display 502 bad gateway error, after i have update my code (.net core), run on my local normal not error, but when i upload in to server it show the errors

Why 502 bad gateway? my site is https://zalaa.me/

Hi @huyblockchain,

The 502/504 errors are caused by a problem connecting to an upstream server - meaning your server is trying to initiate a process and this fails to work as expected or times out. In most cases of 502 / 504 errors, back-end servers are not communicating correctly. When this happens, you will see color page with Cloudflare branding and the Error 502 Bad Gateway or Error 504 Gateway Timeout. Review this Community Tip for fixing 502 or 504 gateway errors.

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