Why does my Android tablet shut down whenever I click on something?

[loveleighn]

android tablet shuts down whenever i clicked something

I have an I.Robot MID-417 4.4 Android tablet, but it always shuts down whenever i go on something. i remembered when I have a Samsung phone (it's not android), it shuts down whenever I clicked the Facebook or other apps, until it always stays on when plugged in and shuts down when charger removed. now, it can't be opened anymore. Help! i don't want to be my tablet become that one.