vbPortal v3.6.5 for vBulletin 3.6.8
problem
Please make sure you have entered the value for $forums in vbPortal 'includes/config.php' and uploaded the changes.

<?php

// -----------------------------------------------------------------------
// vbPortal a Content Management System for vBulletin
// Copyright (C) 2007 by the phpPortals Development Team.
// http://www.phpportals.com/
// -----------------------------------------------------------------------

########################### FOLDERS & PORTAL PREFIX ###########################
# Your vbPortal Database table prefix (Do not change without cause to)
$vbpprefix = 'vbp_';

# Name of your vportal directory or leave blank for root (Do not put / at end).
# You only need to change this values if you install vbPortal in a directory.
# For example you installed vbPortal in a folder on the server called portal
# then you would change this value to $portal = '/portal';
# The preceeding / is very important when you install in a folder.
$portal = '';

# Name of your vBulletin directory, default = '/forums' (Do not put / at end).
# You only need to change this values if you named the directory that vBulletin
# is installed to on your server something other than 'forums', for example you
# named your vBulletin folder forum or board instead of forums then you would
# change this value to $forums = '/forum'; or $forums = '/board';. If you install
# vbPortal in a folder on the server called portal and named your vBulletin folder
# forums then you would leave this value alone. If you install vbPortal in a
# folder on the server called portal and named your vBulletin folder board then
# you would change this value to $forums = '/board'.
# The preceeding / is very important. Do not include parent directories here.
# Note: vBulletin must be installed in a folder under vbPortal.
$forums = '/forums';

# Name of your vbPortal CP directory, default = '/portalcp' (Do not put / at end)
# The preceeding / is very important. Do not include parent directories here.
$portalcp = '/portalcp';
################################################## #############################

// ### Do not edit below this line ###

#define('HOMEPATH', dirname(__FILE__)); // this is now defined elsewhere

// define the full path to the forum from the HOMEPATH
define('VBPATH', HOMEPATH . $forums);

// define the full path to the portalcp from the HOMEPATH
define('PORTALCPPATH', HOMEPATH . $portalcp);

// subdir installation fix
$portalcpdir = $portal . $portalcp;

// define some absolute paths
define('VBP_PREFIX', $vbpprefix);
define('BBDIR', $portal . $forums); // absolute path to forum
define('HOMEDIR', $portal); // absolute path to portal
define('PORTALCPDIR', $portalcpdir); // absolute path to portalcp

?>

Tłumacz google pomaga:

Upewnij się, że podałeś wartość dla $forums w vbPortal 'includes / config.php" i wysłałeś zmiany.