HTC desire 310 wont charge or start

Hi, i have HTC desire 310, its about 3 years old. i had some issues with poping messages, saying that app has stoped working and so... after factory reset the issues stoped, but aftair a while my mobile chrashed. it wont start or charge. ive tryed to boot it with a combo of buttons ( power, vol up and down ) but nothing. if anyone can help ...