Galaxy tab s4 unresponsive

Hi I have a Samsung Galaxy tab s4 that is unresponsive it won't turn on or show that it is charging I have tried pressing and holding volume down and home to no avail however a couple days ago it did turn on and boot up for about 10-15 seconds and then turned right back off until last night when I pressed and held the power button amd once again it turned on for about the same time and will not turn back on does anyone know what the cause of this problem is?

Any help would be greatly appreciated thank you.