Xps13 9343 shuts down on random + beep code

My laptop has been shutting off randomly. This has happened before but more frequebtly lately (2 weeks ago for about 2 days or about 8 tries, then problem went away). Now its happening again, sometimes on playing a video, sometimes just surfing the web. When it shuts down, it gives a fearful beep code and light code. Please see video in link.

I haven't been able to turn on the laptop recently as it just shuts down before the windows load. Also I cannot complete the diagnosis without shut down. I tried contacting dell but response is slow.

Does anyone experience this or know what is wrong?