error in my admincp, help me

[vBB-vietnam]

I've got this error message on left panel while login to admincp
Fatal error: Call to undefined function: print_form_middle() in
/mnt/web_f/d04/s38/b0279be1/www/forum/admincp/index.php on line 733

so, any friends help me to fix that ?

[Rickie3]

i would try FTP your origianl adminCP/index.php from when you first downloaded your vBulletin software