Gaming Laptop msi problem

Hi there, i’ve got a problem with my MSI gt72s 6qe dominator pro g. I’m my case the laptop shuts down randomly out of nowere and in that moment even the charger brick light goes of and i have to replug it into the wall to restart again. Sometime it shuts down after 2 hours, sometimes after 5 minutes it doesn’t matter what i’m doing. Can you please help me with this problem?

Thank you.