crwdns2933897:0crwdne2933897:0

Calculator has a malfunctioning button

What's wrong with my Casio calculator? I was using it for normal calculations when I noticed about 5-6 buttons stopped working. Is there any way to fix this?

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

crwdns2934109:0crwdne2934109:0

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