TraCITestClient: 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/TraCITestClient - from package: sumo

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

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