newsrequeue: 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 Debian possible default full paths are:

/usr/lib/news/bin/newsrequeue - from package: inn

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

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