gst-reload: 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/gst-reload - from package: gnu-smalltalk

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

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