fixfiles: 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:

/sbin/fixfiles - from package: policycoreutils

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

On Debian possible default full paths are:

/sbin/fixfiles - from package: policycoreutils

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

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