Four hours later, I already could login from a different device and from a different region/IP with the particulariry of not needing to confirm with an email's link. So, it looks like that some one is working on the system.
I also tried to login to my account again. I still get the error saying
Incorrect login details and have the same problem.
As I said, I am already logged in my account in another device and I am sure the email address and password I entered was correct.