Xwayland: 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/Xwayland - from package: xwayland

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

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