The hugely popular service, which boasts over 2 billion users worldwide, has been hit by some serious gremlins which have left thousands of fans unable to use the platform or speak to friends and family.In a statement, WhatsApp said: "We're aware that some people are currently having trouble sending messages, and we're working to restore WhatsApp for everyone as quickly as possible."We don't know what is causing the glitch, how widespread it is or when it will be fixed but users will know when their messages have finally been sent via WhatsApp's tick system.Two urgent alerts issued to Android and iPhone usersWhatsApp users have two fresh warnings to watch out for with some devices being blocked from sending messages and a fake version of the popular messaging app trying to steal personal details.WhatsApp: TikTok user reveals how to view deleted messagesThis outage comes after more bad news was announced for some WhatsApp users this week."