I can't unlock my Apple ID

Question

I want to log in to Messages on my Macbook, but it says I need to unlock my Apple ID first.

After clicking "Send to my email", I receive an unlock link, but after opening the link I can't click the "Unlock Apple ID" button.

I inspected the network and it's returning 502 Bad Gateway:

I waited some hours but still the same. Is there any other alternative apart from answering security questions because I forgot the answers?

Answer 1

After I turned off the VPN, the button link is working. Maybe Apple block Opera VPN(maybe any other VPN too).