Access Denied when using Adobe reader login

I see there are many Adobe Reader users gave this feedback here.

But no one could solve it.

Unfortunately, I got this message. You said it is China region problem. But I use it in US.

Your CS team provided unprofessional answer to this.

So that, the following is screenshot. This is a Acrobat Reader. I don't know what happened to this.

You no longer have access to this service. Please contact Adobe Customer Support if you believe this is an error.