kexi_sqlite3_dump: 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/kexi_sqlite3_dump - from package: calligra-libs

You may install the required package with command apt-get install {package}
Error in other languages:
kexi_sqlite3_dump: bevel nie gevind nie
kexi_sqlite3_dump: comandă negăsită
kexi_sqlite3_dump: comando não encontrado
kexi_sqlite3_dump: commande introuvable
kexi_sqlite3_dump: command not found
kexi_sqlite3_dump: käsku ei ole
kexi_sqlite3_dump: không tìm thấy lệnh
kexi_sqlite3_dump: komanda nerasta
kexi_sqlite3_dump: Kommando nicht gefunden.
kexi_sqlite3_dump: kommandot finns inte
kexi_sqlite3_dump: komut yok
kexi_sqlite3_dump: nie znaleziono polecenia
kexi_sqlite3_dump: níor aimsíodh an t-ordú
kexi_sqlite3_dump: no se encontró la orden
kexi_sqlite3_dump: no s'ha trobat l'ordre
kexi_sqlite3_dump: opdracht niet gevonden
kexi_sqlite3_dump: parancs nem található
kexi_sqlite3_dump: perintah tidak ditemukan
kexi_sqlite3_dump: príkaz nenájdený
kexi_sqlite3_dump: příkaz nenalezen
kexi_sqlite3_dump: команда не найдена
kexi_sqlite3_dump: командата не е открита
kexi_sqlite3_dump: 命令找不到
kexi_sqlite3_dump: コマンドが見つかりません