"The information you have entered is not valid"

Hello!
Tried on my main account and on the guild bank account. I can login at the homepage and it say
Is something up with my account? I find it weird that I can login to the homepage but the game client tells me I have false login information
Tried on my main account and on the guild bank account. I can login at the homepage and it say
- Code: Select all
HELLO [ACCOUNT NAME]!
LAST LOGIN INFORMATION
Your last ingame login was from IP x.y.z.a (2015-07-17 03:39:38).
WANT TO CHANGE YOUR ACCOUNT PASSWORD ?
Remember that you are responsible for your account security. We won't help you if your account is hacked.
You can change your password using the ingame .account password command.
Is something up with my account? I find it weird that I can login to the homepage but the game client tells me I have false login information