Please help me!

I've created a forum named 'Extreme Stunting Generation'. Everyone, from every country can register except my friend from Russia. He gets this when he wants to connect to a forum:

How can I fix this problem, tell me please.

I have russia disabled due to antispam I would need your forum url to add an exception.

Here this is the forum URL:
http://esgteam.createaforum.com/index.php?action=forum

Added your site as allowed.

Now when he tries to register like this:

He got this problem:

What now?

Made another change let me know if it helps