Unable to log on Nexon site.

Hi guys.

Today I tried logging on the nexon site today, but after I fill in my info it kicks me to the main page.
I tried logging on multiple account, but none worked.
I also tried deleting cookies and clearing history, but that didn't work.
I've asked a few friends, but they said they can log in perfectly fine.
Does anyone have any idea how to fix this problem?

Thanks by advance.