ephy-profile-migrator: 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/ephy-profile-migrator - from package: epiphany-browser

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

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