endnote-format: 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/bin/endnote-format - from package: libbiblio-endnotestyle-perl

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

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