One of the button rows doesn’t work

The 2nd to bottom row of buttons, specifically Sto→, 1, 2, 3, and +, isn’t working. They were working fine until one day they stopped working. I use the calculator a lot so I would appreciate any answers because it’s $100 to buy a new one.

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

crwdns2934109:0crwdne2934109:0

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