How to fix all buttons not working exept the main one and back

i like to watch it in bed and i feel asleep watching it, it has a super long battery life for just watching youtube but the next day i went to plug it in, it worked but as soon as i took it off the charger the controller section no longer worked exept the home button and back button and nvidia button.

any advice on how to fix it?

i recently dug it out from my closet and had fun using it on road trips, no problem expet when i got home a few days later XD