kwrapper: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/kwrapper - from package: kdelibs3

You may install the required package with command yum install {package}
Error in other languages:
kwrapper: bevel nie gevind nie
kwrapper: comandă negăsită
kwrapper: comando não encontrado
kwrapper: commande introuvable
kwrapper: command not found
kwrapper: käsku ei ole
kwrapper: không tìm thấy lệnh
kwrapper: komanda nerasta
kwrapper: Kommando nicht gefunden.
kwrapper: kommandot finns inte
kwrapper: komut yok
kwrapper: nie znaleziono polecenia
kwrapper: níor aimsíodh an t-ordú
kwrapper: no se encontró la orden
kwrapper: no s'ha trobat l'ordre
kwrapper: opdracht niet gevonden
kwrapper: parancs nem található
kwrapper: perintah tidak ditemukan
kwrapper: príkaz nenájdený
kwrapper: příkaz nenalezen
kwrapper: команда не найдена
kwrapper: командата не е открита
kwrapper: 命令找不到
kwrapper: コマンドが見つかりません