my cctv at homes been working fine since install a couple of months ago,on Friday it came up on the app on my phone,offline.when I got home from work the box was beeping every few minutes.and the Hikvision home page is showing on the monitor,neither the mouse or the remote do anything.ive switched it of and back on again still nothing.ive unplugged cameras still nothing the box powers on and goes straight to home screen on monitor but that’s it