No notification sound on phone

So we bought the eufy set everything up and worked great. Video was working notifications works great then the next day we don’t have any notification on our phones. Nothing has changed it just stop making sounds. We have events recorded showing that so one was at the door but just don’t get the sound on our phones anymore. I’m sure this has been an issue before but only thing I see on here is people saying turn on your notifications in settings. So don’t mention that because it’s done and hasn’t changed.