crwdns2933897:0crwdne2933897:0

Why is my phone get stacked when I switched on it

why is my phone get stacked when I switched on it, it gets stacked on hte screen saver 'SAMSUNG' when I try to switch, and it rings for others when they call but I can't hear it , I can't answer and I can't see who is calling

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

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0