404 while accessing .wellknown/acme-challenge

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:
api.ipventures.in

I ran this command:
certbot certonly --webroot -d api.ipventures.in -d www.api.ipventures.in --email tech@ipventures.in -w /var/www/_letsencrypt -n --agree-tos --force-renewal

It produced this output:

Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for api.ipventures.in
http-01 challenge for www.api.ipventures.in
Using the webroot path /var/www/_letsencrypt for all unmatched domains.
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. api.ipventures.in (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://api.ipventures.in/.well-known/acme-challenge/TFO_Gz-X70bHo9z9kumerp_cAXX2HKU_TyjavZQ67aw [3.7.85.151]: “\r\n404 Not Found\r\n<body bgcolor=“white”>\r\n

404 Not Found

\r\n
”, www.api.ipventures.in (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://www.api.ipventures.in/.well-known/acme-challenge/03n8hff8TuAeMTnOKoZ2G2OJwZXzR5kAEBQLl4Nsiu8 [3.7.85.151]: “\r\n404 Not Found\r\n<body bgcolor=“white”>\r\n

404 Not Found

\r\n
IMPORTANT NOTES:
 - The following errors were reported by the server:

   Domain: api.ipventures.in
   Type:   unauthorized
   Detail: Invalid response from
   http://api.ipventures.in/.well-known/acme-challenge/TFO_Gz-X70bHo9z9kumerp_cAXX2HKU_TyjavZQ67aw
   [3.7.85.151]: "<html>\r\n<head><title>404 Not
   Found</title></head>\r\n<body bgcolor=\"white\">\r\n<center><h1>404
   Not Found</h1></center>\r\n<hr><center>"

   Domain: www.api.ipventures.in
   Type:   unauthorized
   Detail: Invalid response from
   http://www.api.ipventures.in/.well-known/acme-challenge/03n8hff8TuAeMTnOKoZ2G2OJwZXzR5kAEBQLl4Nsiu8
   [3.7.85.151]: "<html>\r\n<head><title>404 Not
   Found</title></head>\r\n<body bgcolor=\"white\">\r\n<center><h1>404
   Not Found</h1></center>\r\n<hr><center>"

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A/AAAA record(s) for that domain
   contain(s) the right IP address.

My web server is (include version):

nginx version: nginx/1.14.0 (Ubuntu)

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

Ubuntu 18.04 LTS

My hosting provider, if applicable, is:

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

Yes

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

no

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you’re using Certbot):

certbot 0.31.0

Why do you specify the webroot /var/www/_letsencrypt? Is that also the root configured in nginx for your website? Or do you have a specific configuration in place in nginx so the validation request is somehow accessed from that directory?

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