Ssl certificate not working on multisite safari

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. crt.sh | 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: TransStadia Education & Research Foundation, TransStadia Education & Research Foundation

I ran this command:

It produced this output: the connection is not private. safari warns you when a website has a certificate that is invalid.

My web server is (include version):

The operating system my web server runs on is (include version): Ubuntu, Google Cloud

My hosting provider, if applicable, is: Google Cloud

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):

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

Ensure you are not adding "www" to the FQDN; As the cert doesn't cover that name.

Although a cert was issued to cover that "www" name:
crt.sh | transstadiainstitute.in
There was also another cert issued, on the same day, without "www" and is the cert being served now.
SSL Server Test: transstadiainstitute.in (Powered by Qualys SSL Labs)

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