I want to open an order but when I am about to do it, kraken asks me for a "one time password" (Enter the one-time password required by two-factor authentication.)
I have read the FAQs and everything but I just don't understand how to get that "one time password", help?
I'm not sure if you've enabled two-factor authentication with Google or another option, but when I log into Kraken and it asks me for that, as I've enabled my Yubikey as the two-factor authentication on my account, I touch my Yubikey and it enters the 'one time password' logging me straight in. If you've not enabled two-factor authentication and you're being prompted for that 'one time password', I'd suggest you log a support ticket with Kraken as unless you've tried just clearing that field and attempting to log in without that field being filled, then it sounds like there's some ambiguity with your account set-up.
Just as a matter of note, if you're interested in getting your own two-factor authentication device for Kraken and other uses, you can buy a Yubikey from
www.yubico.com for USD$25+ and while you're at it consider
www.lastpass.com which is a password manager for about USD$12 annually that works with your Yubikey for additional security. I got fed up with having to create and remember loads of secure passwords for various bitcoin related sites and exchanges that I figured it's worth it.
Good luck.