phytime: command not found

Have You tried accessing the binary with the full path?

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/phytime - from package: phyml

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