ltspfs_mount: 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/sbin/ltspfs_mount - from package: ltspfsd

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

On Debian possible default full paths are:

/usr/sbin/ltspfs_mount - from package: ltspfsd-core

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