Phone only turns on when I hold under the fingerprint sensor

My phone is only powering on when I press hard under the fingerprint sensor, right on the Samsung logo, if I release it shuts off

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

crwdns2934109:0crwdne2934109:0

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