Ps3 power off during play

I have ps3 60gb I recently had it work on the disc failed to read. When I got it back from the shop it played fine for about 3 hours then it powered down. The lights blinked a few times then it cut off. Now when I power it up it does the same thing. Is it fixable or do I need new one?

Hey there I can fix it and I can video call you I have experience in repairing ps3