SimpleAgenda 0.44 - No way to add new task or new appointment

[Patrick CARDONA]

Hi all,

When I try to add a new task (#t)  - or a new appointment - within 
SimpleAgenda.app, the OK button is disabled in the "Edit task" panel 
and the Store list is empty. So I cannot save anything.

As I can understand, the default calendar is not set.
Is anybody able to use this app as It should do ?

Bye !
Patrick