Failed to register a Mikrotic account

I want to apply a 60-days trial license of CHR, the first thing to do seems to be register an account of Mikrotic.

In the Register form, I have filed everything. Immediate above the “register” button, there is a label “Prove you are a human”, but there is nothing right to the label. After I clicked “register” button, I got an error message “Please check human test form!”.

I have tried with Chrome, Firefox, Safari on MacOS and IE on Window. All have same result.

What did I miss?

No idea but it’s ok here on Chrome Mac OS X. Just captured this 1 min ago from https://mikrotik.com/client/register