withsctp: 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/withsctp - from package: lksctp-tools

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

On Debian possible default full paths are:

/usr/bin/withsctp - from package: lksctp-tools

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

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