i have just installed XOOPS on http://www.fluks.be

when i try to reach some module (e.g. forum) i get the error below

Warning: main(XOOPS_ROOT_PATH/class/xoopsblock.php): failed to open stream: No such file or directory in /usr/local/psa/home/vhosts/fluks.be/httpdocs/header.php on line 28

Warning: main(): Failed opening 'XOOPS_ROOT_PATH/class/xoopsblock.php' for inclusion (include_path='/usr/local/psa/home/vhosts/fluks.be/httpdocs:.') in /usr/local/psa/home/vhosts/fluks.be/httpdocs/header.php on line 28

Warning: main(XOOPS_ROOT_PATH/class/template.php): failed to open stream: No such file or directory in /usr/local/psa/home/vhosts/fluks.be/httpdocs/header.php on line 62

Fatal error: main(): Failed opening required 'XOOPS_ROOT_PATH/class/template.php' (include_path='/usr/local/psa/home/vhosts/fluks.be/httpdocs:.') in /usr/local/psa/home/vhosts/fluks.be/httpdocs/header.php on line 62



strange thing is that i only get the errors on some modules

http://www.fluks.be/modules/news/

works fine

http://www.fluks.be/modules/newbb/

gives an error

my header.php looks like this

// $Id: header.php,v 1.40 2004/06/13 05:47:31 Onokazu Exp $
// ------------------------------------------------------------------------ //
// XOOPS - PHP Content Management System //
// Copyright (c) 2000 XOOPS.org //
// <https://xoops.org/> //
// ------------------------------------------------------------------------ //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation; either version 2 of the License, or //
// (at your option) any later version. //
// //
// You may not change or alter any portion of this comment or credits //
// of supporting developers from this source code or any supporting //
// source code which is considered copyrighted (c) material of the //
// original comment or credit authors. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program; if not, write to the Free Software //
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA //
// ------------------------------------------------------------------------ //

include_once XOOPS_ROOT_PATH.'/class/xoopsblock.php';
if ($xoopsConfig['theme_set'] != 'default' && file_exists(XOOPS_THEME_PATH.'/'.$xoopsConfig['theme_set'].'/theme.php')) {
// the old way..
$xoopsOption['theme_use_smarty'] = 0;
if (file_exists(XOOPS_THEME_PATH.'/'.$xoopsConfig['theme_set'].'/language/lang-'.$xoopsConfig['language'].'.php')) {
include XOOPS_THEME_PATH.'/'.$xoopsConfig['theme_set'].'/language/lang-'.$xoopsConfig['language'].'.php';
} elseif (file_exists(XOOPS_THEME_PATH.'/'.$xoopsConfig['theme_set'].'/language/lang-english.php')) {
include XOOPS_THEME_PATH.'/'.$xoopsConfig['theme_set'].'/language/lang-english.php';
}
$config_handler =& xoops_gethandler('config');
$xoopsConfigMetaFooter =& $config_handler->getConfigsByCat(XOOPS_CONF_METAFOOTER);
xoops_header(false);
include XOOPS_THEME_PATH.'/'.$xoopsConfig['theme_set'].'/theme.php';
$xoopsOption['show_rblock'] = (!empty($xoopsOption['show_rblock'])) ? $xoopsOption['show_rblock'] : 0;
// include Smarty template engine and initialize it
require_once XOOPS_ROOT_PATH.'/class/template.php';
$xoopsTpl = new XoopsTpl();
if ($xoopsConfig['debug_mode'] == 3) {
$xoopsTpl->xoops_setDebugging(true);
}
if ($xoopsUser != '') {
$xoopsTpl->assign(array('xoops_isuser' => true, 'xoops_userid' => $xoopsUser->getVar('uid'), 'xoops_uname' => $xoopsUser->getVar('uname'), 'xoops_isadmin' => $xoopsUserIsAdmin));
}
$xoopsTpl->assign('xoops_requesturi', htmlspecialchars($GLOBALS['xoopsRequestUri'], ENT_QUOTES));
include XOOPS_ROOT_PATH.'/include/old_functions.php';

if ($xoopsOption['show_cblock'] || (isset($xoopsModule) && preg_match("/index\.php$/i", xoops_getenv('PHP_SELF')) && $xoopsConfig['startpage'] == $xoopsModule->getVar('dirname'))) {
$xoopsOption['show_rblock'] = $xoopsOption['show_cblock'] = 1;
}
themeheader($xoopsOption['show_rblock']);
if ($xoopsOption['show_cblock']) make_cblock(); //create center block
} else {
$xoopsOption['theme_use_smarty'] = 1;
// include Smarty template engine and initialize it
require_once XOOPS_ROOT_PATH.'/class/template.php';
$xoopsTpl = new XoopsTpl();
$xoopsTpl->xoops_setCaching(2);
if ($xoopsConfig['debug_mode'] == 3) {
$xoopsTpl->xoops_setDebugging(true);
}
$xoopsTpl->assign(array('xoops_theme' => $xoopsConfig['theme_set'], 'xoops_imageurl' => XOOPS_THEME_URL.'/'.$xoopsConfig['theme_set'].'/', 'xoops_themecss'=> xoops_getcss($xoopsConfig['theme_set']), 'xoops_requesturi' => htmlspecialchars($GLOBALS['xoopsRequestUri'], ENT_QUOTES), 'xoops_sitename' => htmlspecialchars($xoopsConfig['sitename'], ENT_QUOTES)));
// Meta tags
$config_handler =& xoops_gethandler('config');
$criteria = new CriteriaCompo(new Criteria('conf_modid', 0));
$criteria->add(new Criteria('conf_catid', XOOPS_CONF_METAFOOTER));
$config =& $config_handler->getConfigs($criteria, true);
foreach (array_keys($config) as $i) {
// prefix each tag with 'xoops_'
$xoopsTpl->assign('xoops_'.$config[$i]->getVar('conf_name'), $config[$i]->getConfValueForOutput());
}
//unset($config);
// show banner?
if ($xoopsConfig['banners'] == 1) {
$xoopsTpl->assign('xoops_banner', xoops_getbanner());
} else {
$xoopsTpl->assign('xoops_banner', ' ');
}
// Weird, but need extra