sreplay: command not found

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/sreplay - from package: sslogger

You may install the required package with command yum install {package}

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