Notification not provided

Yesterday i was working on blynk and it was working properly but today it do not provide notification what is the reason?
Also my device come into exception list . Setting - Devices - Exception . is that a reason?

It could be that you’ve exceeded the maximum number of event in a 24 hour period, or your phone is in “do not disturb” mode.

I don’t understand this.
Is this in the app or web console?
Can you post a screenshot?

Pete.