I no longer get notices that tell me I haven't done my daily work and am about to break my streak. How can I fix that?
Do your profile settings still say that you have notifications turned on? Are they being sent to the correct email? Is the spam filter or other email filters possibly at play?
Is it possible that you're in an a/b test looking at the effect of notifications? You can check out your a/b test groups here: https://www.duolingo.com/comment/5023812