Guild Wars 2

As the title says, i just don’t understand, why i can log in at the website but i can’t log in to my game client? I just bought a new pc therefore i install it here and when i tried to log in, BOOM, it says “the account name or password you entered is invalid”.

What the? Doesn’t make sense!

Not sure whether this is the right place to post this but i’m sure it does. My topic title says it all
I got exactly
- 100% Map completion
- x2 gift of exploration
- The title “Been there, Done that”

BUT! No star. This is my question, why…