fixwpps: 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/fixwpps - from package: psutils-perl

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

On Debian possible default full paths are:

/usr/bin/fixwpps - from package: psutils

You may install the required package with command apt-get install {package}

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