Also it says:
 Checking notificationways...
 Checked 3 notificationways
I defined only one of it:
I don't know if this is a shinken or an omd problem. My guess
shinken. Please let me know, if you need more information.
I suppose you got 2 contacts isn't it?
In fact, when you define a contact with a "old school
definition" (commands+period in the contact definition)
shinken autogenerate a notification-way with theses values,
and link it to your contact. But I do not unsderstand why you
get notification by group of 2, is the shinken.log say it
launch it twice or not?