xelollipop: 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/xelollipop - from package: texlive-formats-extra

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