Facebook debugger https://developers.facebook.com/tools/debug returns can't validate SSL certificate

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: ekamtek.com

I ran this command: SSL Server Test: ekamtek.com (Powered by Qualys SSL Labs)

It produced this output: Chain issues Incomplete

My web server is (include version): nginx

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

My hosting provider, if applicable, is: https://app.infinityfree.net/

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

I'm using a control panel to manage my site (no, or provide the name and version of the control panel): https://cpanel.epizy.com/panel

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): Not applicable

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Welcome to the Let's Encrypt Community :slightly_smiling_face:

Yep, your certificate chain is incomplete. Currently you are only serving your leaf certificate when you should also be serving the R3 intermediate certificate and the ISRG Root X1 intermediate certificate.

I have constructed your full certificate chain in a single file for you to download:

ekamtek.com.fullchain.pem (5.5 KB)

If that full certificate chain does not work for your setup, try this one instead:

ekamtek.com.altfullchain.pem (3.4 KB)

If you find that you need to use the altfullchain file, you should inform your hosting provider that they need to update their panel and can contact us with any questions they may have.

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Thank you for your reply. Let me approach infinityfree to provide us panel to upload full certificate chain.

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