uim-el-helper-agent: 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 Debian possible default full paths are:

/usr/bin/uim-el-helper-agent - from package: uim-el

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