Can't Sign in to Virgin App

Hi virgin community, 

I can't seem to sign in to VM app on my phone or web browser on my laptop. Every time I try to click sign in, it brings me to a blank screen with the virgin media logo on top with a black strip in the background. I've tried all possible methods repeatedly like clearing the history, cache, sign in from different devices, even signing in using different Wifi connection and mobile data, none of them worked. I've tried calling VM customer service several times as well and they couldn't provide a solution on this. There's a similar thread posted months ago but there's no solution written on there. Can anyone shed light on this??