mbim-network: 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/mbim-network - from package: libmbim-utils

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

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