xmlproc_parse: 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/bin/xmlproc_parse - from package: PyXML

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