uim-toolbar-gtk3-systray: 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/uim-toolbar-gtk3-systray - from package: uim-gtk3

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

Error in other languages:
uim-toolbar-gtk3-systray: bevel nie gevind nie
uim-toolbar-gtk3-systray: comandă negăsită
uim-toolbar-gtk3-systray: comando não encontrado
uim-toolbar-gtk3-systray: commande introuvable
uim-toolbar-gtk3-systray: command not found
uim-toolbar-gtk3-systray: käsku ei ole
uim-toolbar-gtk3-systray: không tìm thấy lệnh
uim-toolbar-gtk3-systray: komanda nerasta
uim-toolbar-gtk3-systray: Kommando nicht gefunden.
uim-toolbar-gtk3-systray: kommandot finns inte
uim-toolbar-gtk3-systray: komut yok
uim-toolbar-gtk3-systray: nie znaleziono polecenia
uim-toolbar-gtk3-systray: níor aimsíodh an t-ordú
uim-toolbar-gtk3-systray: no se encontró la orden
uim-toolbar-gtk3-systray: no s'ha trobat l'ordre
uim-toolbar-gtk3-systray: opdracht niet gevonden
uim-toolbar-gtk3-systray: parancs nem található
uim-toolbar-gtk3-systray: perintah tidak ditemukan
uim-toolbar-gtk3-systray: príkaz nenájdený
uim-toolbar-gtk3-systray: příkaz nenalezen
uim-toolbar-gtk3-systray: команда не найдена
uim-toolbar-gtk3-systray: командата не е открита
uim-toolbar-gtk3-systray: 命令找不到
uim-toolbar-gtk3-systray: コマンドが見つかりません