gallery-uploader: 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/gallery-uploader - from package: gallery-uploader

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

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