Erro 520: web server returns an unknown error

this error started after i updated node js

Was your web application working over HTTPS prior moving to the Cloudflare? :thinking:

Yes, I was already using Cloudflare and it was working normally, after updating the version in node js, I get this error 520, I have the site paused in Cloudflare to have access now

May I ask what steps for troubleshooting have you already tried from the article below about the 520 error you’re getting ? :thinking:

Anything in the configuration file of NodeJS being modified? :thinking:

no, nothing has changed