Inspiron 15 5567, not booting, blinking 5 white/ 3 amber

Hello!,

I have an issue with my Dell Inspiron 15 5567 laptop (warranty expired on June 11, 2018). The laptop was working perfectly and I shut it down. I then tried to start it again but I can see when I press the power button, it is blinking 5 white/ 3 amber. I found some codes below but this blinking 5 white/ 3 amber code isn't included, what does this code mean?

Thanks.