Galaxy Note 3 - Stock mail error?

[emiinn]

When I receive a mail, and want to open it thru notifications.

My stock mailapp doesn't open, I get a black screen, it waits and says everytime: "couldn't open email"
But it works when I open my app thru the homescreen. Anyone else experiencing this?

 

[emiinn]

Update: I also get this error when I first open the mail app @ home screen

I've downloaded K9 but couldn't get it to push.. This is so annoying