fflaser_deadspots: 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 CentOS possible default full paths are:

/usr/bin/fflaser_deadspots - from package: fawkes-plugin-laser

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