Cameras not sending any motion notifications

Since last few days the Wyze app is not showing any notifications. I havent changed any settings on IOS app and not done firmware upgrade. I am on Cam plus Lite plan. The notifications were working perfectly fine till few days back. I have been using the cameras for more than 2 years but it seems issue recently started. I can see the motions are being detected in the events screen. But those were not pushed as notification, like it was used to. Any tips? Thanks.