As said in the subject.
I cannot select the first mission, because there is none.

I just created a new Itani character to test this, and it worked correctly.

It's pretty disturbing to hear that this failed for anyone. We'll look into it. If you go ahead and log in again, it should work fine now. If not, please let us know.

Slate, please try again. There was something wrong with the creation of your character. When did you create your character?