verve-focus: 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/verve-focus - from package: xfce4-verve-plugin

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

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