My tablet turns on and off randomly

My tablet turns on and off randomly it has a new battery but sometimes after a little use it shuts off. Or after I charge it a little and then it shuts off.anyone having the same problem? Is it the table or shoft wear?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0