I can't type u, h or b on my screen all the other letters work

I can't type u, h or b on my screen, which is very annoying, all the other letters work. you can type them on the landscape mode - phone held sideward but not when held upright on portray

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

crwdns2934109:0crwdne2934109:0

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