Cannot log-in to my account on minecraft.net

Good day! I am trying to access minecraft.net but I cannot log-in. I kept on clicking the log-in button but it doesn't work. I don't have any VPNs.

I tried to inspect the website and this shows up:

POST https://authserver.mojang.com/authenticate net::ERR_CERT_COMMON_NAME_INVALID
Uncaught (in promise) TypeError: Failed to fetch