WhatsApp was working absolutely fine just an hour ago, suddenly it stopped receiving any messages nor I am able to send any. Internet connection is absolutely fine. I tried to reboot the phone and also reinstall whatsapp many times, but no use. Even using mobile data, messages are not sent. After typing the message and pressing send button, nothing happens, that message doesn't appear in the conversation at all... Someone please help me..
Model : Microsoft Lumia 640 XL WhatsApp version : 2.12.276