ERROR: "An Error Occurred. Please Try Again." when trying to create a new Mojang Account

I am trying to create a new Mojang account so that I can merge my existing Minecraft account.

When I click the Register button at the URL shown below, I get the error message "An error occurred. Please try again." I typed in my password twice, and the e-mail address I am entering is a valid e-mail address. No further instructions are provided.

URL: https://account.mojang.com/register

This issue is repeatable. I tried five times on two different computers and encountered the same error.

I am using Windows 10 with the latest version of Chrome.

A screenshot of the error is attached.

This is an issue because:

1) It is preventing me from creating a new Mojang account. I am unable to create a new Mojang account because of this issue.

2) "Please try again" doesn't tell me what the actual issue is, nor does it tell me what I should do to resolve the issue. I have "tried again" five times on two different computers and continue to get the same error message – so trying again apparently isn't the solution.