Computer cannot access website

I have a whm/cpanel account and have hosted a domain xxxx.com there.
On computer A (located in Asia), I can successfully access the website like this: https://vps.xxxx.com
On computer B(windows), C(linux) (located in Europe), if I give this address, in the browser(chrome and mozilla), then it says,
"Secure Connection Failed
An error occurred during a connection to vps.xxxx.com. Peer's Certificate has been revoked. Error code: SEC_ERROR_REVOKED_CERTIFICATE."

However, On computer B and C, if I give the address [removed] (omitting the words 'vps'), then I can access the website properly and there is no error.
In the DNS records, "vps" has an A type of record.
Operating system of web server: centos 7

Question: Why from computer B and C, I am getting the error message and cannot access website with address vps.xxxx.com?

 

vps is the hostname. It is not a subdomain. It is not listed in ssl certificate. But the question is why computer A from Asia can access it under https. While computer B (Europe) cannot access it.