gbrowse_set_admin_passwd: 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/gbrowse_set_admin_passwd - from package: gbrowse

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

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