Warning: Invalid argument error in the block display area.

OK - the block is working, shows pic, caption, etc. (see http://www.istepfamily.com - lower right of page) However, just above the random photo, the following warning appears:

Warning: Invalid argument supplied for foreach() in /home/weyantpr/public_html/modules/gallery/session.php on line 55

Ok - so here is the text of session.php - any advice/input? I know enough of the language to get me to a bathroom or bus stop, if you know what I mean, but otherwise, php illiterate. :lol: lol

Thanks VERY MUCH in advance!!!

<?php
/*
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2002 Bharat Mediratta
*
* 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.
*
* 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.
*/
?>
<?php
// Hack prevention.
if (!empty($HTTP_GET_VARS["GALLERY_BASEDIR"]) ||
!empty($HTTP_POST_VARS["GALLERY_BASEDIR"]) ||
!empty($HTTP_COOKIE_VARS["GALLERY_BASEDIR"])) {
print "Security violationn";
exit;
}
?>
<?php
/*
* PHP 4.0.1pl2 introduces a bug where you can't unserialize a
* stdClass instance correctly. So create a dummy class to hold all
* of our session data.
*/
class GallerySession {}

if (session_id()) {
/*
* The session is being created externally. This means that if
* we store our data in a GallerySession class, we won't be able
* to deserialize it (because it's not being defined before the
* external session starts). So, we'll have to fall back on using
* stdClass() which will cause problems on older PHP4 servers.
* oh well.
*/
$useStdClass = 1;
}

/* Start a new session, or resume our current one */
session_start();

/* emulate register_globals for sessions */
if (!$gallery->register_globals) {
foreach($HTTP_SESSION_VARS as $key => $value) {
eval("$$key = &amp; $HTTP_SESSION_VARS["$key"];");
}
}

/*
* Are we resuming an existing session? Determine this by checking
* to see if the session container variable is already set. If not, then
* create the appropriate container for it.
*/
$sessionVar = $gallery->app->sessionVar . "_" . md5($gallery->app->userDir);
session_register($sessionVar);

if (isset($$sessionVar)) {
/* Get a simple reference to the session container (for convenience) */
$gallery->session =&amp; $$sessionVar;

/* Make sure our session is current. If not, nuke it and restart. */
/* Disabled this code -- it has too many repercussions */
if (false) {
if (strcmp($gallery->session->version, $gallery->version)) {
session_destroy();
header("Location: index.php");
exit;
}
}
} else {
/* Register the session variable */
session_register($sessionVar);

/* Create a new session container */
if ($useStdClass) {
$$sessionVar = new stdClass();
} else {
$$sessionVar = new GallerySession();
}

/* Get a simple reference to the session container (for convenience) */
$gallery->session =&amp; $$sessionVar;

/* Tag this session with the gallery version */
$gallery->session->version = $gallery->version;
}

update_session_var("albumName");
update_session_var("version");
update_session_var("albumListPage");
update_session_var("fullOnly");
update_session_var("username", 1);

/*
* Process changes to session variables via parameters submitted in a
* POST or GET.
*/
function update_session_var($name, $protected=0) {
global $gallery;

// If this is a protected session variable, don't allow it
// to be changed by data from POST or GET requests.
if ($protected) {
return;
}

$setname = "set_$name";
if (!emptyFormVar($setname)) {
$gallery->session->{$name} = formVar($setname);
}
}
?>