Ssl activation problem NET::ERR_CERT_AUTHORITY_INVALID

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My domain is:

I ran this command:
/root/ --issue -d -d --cert-file /etc/letsencrypt/live/ --key-file /etc/letsencrypt/live/ --fullchain-file /etc/letsencrypt/live/ -w /usr/local/lsws/Example/html -k ec-256 --force --server letsencrypt
It produced this output:
Pending, The CA is processing your order, please just wait. (1/30)
Please refer to libcurl - Error Codes for error code: 35 error:
Please add '--debug' or '--log' to check more details.
See: How to debug · acmesh-official/ Wiki · GitHub

My web server is (include version):
php 7.3

The operating system my web server runs on is (include version):
Ubuntu 20.04

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know):

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):


Please do this.


I got this:

Your server is returning a 502 http error code. It does this even for "home page" requests and is not related to Let's Encrypt. You should first fix your server and then try after that. The 502 is usually something wrong with your proxy_pass

curl -I
HTTP/1.1 502 Bad Gateway
Server: nginx/1.18.0 (Ubuntu)
Date: Tue, 27 Sep 2022 14:10:33 GMT
Content-Type: text/html
Content-Length: 166
Connection: keep-alive

Further, you should change your port 80 nginx server block to process the acme-challenge requests without sending to the proxy


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