SSL certificate problem: unable to get local issuer certificate

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1

I had generated SSL Certificate for the following Domains using letsencrypt DNS Challenge
The domain working with SSL on Browsers Chrome, Firefox, Edge
https://netaxis.aicaller.xyz:4443/main.php

But while Accessing on Curl and PHP it shows error

curl: (60) SSL certificate problem: unable to get local issuer certificate
More details here: https://curl.se/docs/sslcerts.html

curl failed to verify the legitimacy of the server and therefore could not
establish a secure connection to it. To learn more about this situation and
how to fix it, please visit the web page mentioned above.

Solutions will help us a lot
Thanks in Advance

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2

Hello,

Your apache webserver running on ubuntu is configured to serve only the leaf certificate, not the full chain including the intermediate signing certificate.

tumbleweed:~ # openssl s_client -connect netaxis.aicaller.xyz:4443
CONNECTED(00000003)
depth=0 CN = netaxis.aicaller.xyz
verify error:num=20:unable to get local issuer certificate
verify return:1
depth=0 CN = netaxis.aicaller.xyz
verify error:num=21:unable to verify the first certificate
verify return:1
depth=0 CN = netaxis.aicaller.xyz
verify return:1
---
Certificate chain
 0 s:CN = netaxis.aicaller.xyz
   i:C = US, O = Let's Encrypt, CN = R3
   a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
   v:NotBefore: Feb  6 06:51:27 2024 GMT; NotAfter: May  6 06:51:26 2024 GMT
---
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