"Notification From Email" on the substie activation only

"Notification From Email" for plugin "Subcribe by Email"
Plugin activated only on the subsite but it is not asking for the "Notification From Email".

Can you help?

N.B.:
Dear this is similar to my previous post, but I post it here again because you reply very quickly to the first post and there is not follow up on the following replies of the support question.