Over the past week, I have been altering the layout of my website, but I have encountered a 502 error. Upon further investigation, it appears to be a problem related to Cloudflare and my hosting provider. Initially, I attempted to rectify the issue by pausing and resuming Cloudflare, but unfortunately, this did not improve the situation. In my next attempt, I decided to delete Cloudflare and reinstall it, but I am now encountering an issue where Cloudflare is stating that my domain is invalid.
I am now seeking guidance on how to properly integrate Cloudflare once again. Your expertise in this matter would be greatly appreciated, and I look forward to your assistance.
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.