I assume you never played the game before with that account cause the patches does not affect anyone's account.
There's a few things you must keep in mind when logging into FH but also when creating an account in some cases.
A few things you should keep in mind is that the password is CAPITAL sensitive, which means if you write a big letter where it should be a small, or other way around it will see it as a wrong password. Another thing you must keep in mind is that the numpad does not work. If you use numbers in your password you must use the numbers above the letters instead of the numpad next to the arrows.
If you still are unable to sign it, I'd simply suggest you to create a new account with only letters from a-z, staying away from numbers and symbols in general.