fusion_call: 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 CentOS possible default full paths are:

/usr/bin/fusion_call - from package: directfb

You may install the required package with command yum install {package}

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