Fatal error: Call to a member function add_current_page() on a non-object

[Lowryder1]

I keep getting this php error please help:o.

Fatal error: Call to a member function add_current_page() on a non-object in /home/a5851346/public_html/includes/application_top.php on line 316

I have tried checking but I can't see problem, as I am installing wholesale inquiries oscommerce add-on.

anyways, here is code for application_top.php where I am getting error.

I will post over 2 posts as it's to big for 1 post.

<?php
/*
  $Id: application_top.php 1833 2008-01-30 22:03:30Z hpdl $

  osCommerce, Open Source E-Commerce Solutions
  http://www.oscommerce.com

  Copyright (c) 2008 osCommerce

  Released under the GNU General Public License
*/

// start the timer for the page parse time log
  define('PAGE_PARSE_START_TIME', microtime());

// set the level of error reporting
  error_reporting(E_ALL & ~E_NOTICE);

// check support for register_globals
  if (function_exists('ini_get') && (ini_get('register_globals') == false) && (PHP_VERSION < 4.3) ) {
    exit('Server Requirement Error: register_globals is disabled in your PHP configuration. This can be enabled in your php.ini configuration file or in the .htaccess file in your catalog directory. Please use PHP 4.3+ if register_globals cannot be enabled on the server.');
  }

// Set the local configuration parameters - mainly for developers
  if (file_exists('includes/local/configure.php')) include('includes/local/configure.php');

// include server parameters
  require('includes/configure.php');

  if (strlen(DB_SERVER) < 1) {
    if (is_dir('install')) {
      header('Location: install/index.php');
    }
  }

// define the project version
  define('PROJECT_VERSION', 'osCommerce Online Merchant v2.2 RC2a');

// some code to solve compatibility issues
  require(DIR_WS_FUNCTIONS . 'compatibility.php');

// set the type of request (secure or not)
  $request_type = (getenv('HTTPS') == 'on') ? 'SSL' : 'NONSSL';

// set php_self in the local scope
  if (!isset($PHP_SELF)) $PHP_SELF = $HTTP_SERVER_VARS['PHP_SELF'];

  if ($request_type == 'NONSSL') {
    define('DIR_WS_CATALOG', DIR_WS_HTTP_CATALOG);
  } else {
    define('DIR_WS_CATALOG', DIR_WS_HTTPS_CATALOG);
  }

// include the list of project filenames
  require(DIR_WS_INCLUDES . 'filenames.php');

// include the list of project database tables
  require(DIR_WS_INCLUDES . 'database_tables.php');

// customization for the design layout
  define('BOX_WIDTH', 125); // how wide the boxes should be in pixels (default: 125)

// include the database functions
  require(DIR_WS_FUNCTIONS . 'database.php');

// make a connection to the database... now
  tep_db_connect() or die('Unable to connect to database server!');

// set the application parameters
  $configuration_query = tep_db_query('select configuration_key as cfgKey, configuration_value as cfgValue from ' . TABLE_CONFIGURATION);
  while ($configuration = tep_db_fetch_array($configuration_query)) {
    define($configuration['cfgKey'], $configuration['cfgValue']);
  }

// if gzip_compression is enabled, start to buffer the output
  if ( (GZIP_COMPRESSION == 'true') && ($ext_zlib_loaded = extension_loaded('zlib')) && (PHP_VERSION >= '4') ) {
    if (($ini_zlib_output_compression = (int)ini_get('zlib.output_compression')) < 1) {
      if (PHP_VERSION >= '4.0.4') {
        ob_start('ob_gzhandler');
      } else {
        include(DIR_WS_FUNCTIONS . 'gzip_compression.php');
        ob_start();
        ob_implicit_flush();
      }
    } else {
      ini_set('zlib.output_compression_level', GZIP_LEVEL);
    }
  }

// set the HTTP GET parameters manually if search_engine_friendly_urls is enabled
  if (SEARCH_ENGINE_FRIENDLY_URLS == 'true') {
    if (strlen(getenv('PATH_INFO')) > 1) {
      $GET_array = array();
      $PHP_SELF = str_replace(getenv('PATH_INFO'), '', $PHP_SELF);
      $vars = explode('/', substr(getenv('PATH_INFO'), 1));
      for ($i=0, $n=sizeof($vars); $i<$n; $i++) {
        if (strpos($vars[$i], '[]')) {
          $GET_array[substr($vars[$i], 0, -2)][] = $vars[$i+1];
        } else {
          $HTTP_GET_VARS[$vars[$i]] = $vars[$i+1];
        }
        $i++;
      }

  if (sizeof($GET_array) > 0) {
    while (list($key, $value) = each($GET_array)) {
      $HTTP_GET_VARS[$key] = $value;
    }
  }
}
  }

// define general functions used application-wide
  require(DIR_WS_FUNCTIONS . 'general.php');
  require(DIR_WS_FUNCTIONS . 'html_output.php');

// set the cookie domain
  $cookie_domain = (($request_type == 'NONSSL') ? HTTP_COOKIE_DOMAIN : HTTPS_COOKIE_DOMAIN);
  $cookie_path = (($request_type == 'NONSSL') ? HTTP_COOKIE_PATH : HTTPS_COOKIE_PATH);

// include cache functions if enabled
  if (USE_CACHE == 'true') include(DIR_WS_FUNCTIONS . 'cache.php');

// include shopping cart class
  require(DIR_WS_CLASSES . 'shopping_cart.php');

// include navigation history class
  require(DIR_WS_CLASSES . 'navigation_history.php');

// check if sessions are supported, otherwise use the php3 compatible session class
  if (!function_exists('session_start')) {
    define('PHP_SESSION_NAME', 'osCsid');
    define('PHP_SESSION_PATH', $cookie_path);
    define('PHP_SESSION_DOMAIN', $cookie_domain);
    define('PHP_SESSION_SAVE_PATH', SESSION_WRITE_DIRECTORY);

include(DIR_WS_CLASSES . 'sessions.php');
  }

// define how the session functions will be used
  require(DIR_WS_FUNCTIONS . 'sessions.php');

// set the session name and save path
  tep_session_name('osCsid');
  tep_session_save_path(SESSION_WRITE_DIRECTORY);

// set the session cookie parameters
   if (function_exists('session_set_cookie_params')) {
    session_set_cookie_params(0, $cookie_path, $cookie_domain);
  } elseif (function_exists('ini_set')) {
    ini_set('session.cookie_lifetime', '0');
    ini_set('session.cookie_path', $cookie_path);
    ini_set('session.cookie_domain', $cookie_domain);
  }

// set the session ID if it exists
   if (isset($HTTP_POST_VARS[tep_session_name()])) {
     tep_session_id($HTTP_POST_VARS[tep_session_name()]);
   } elseif ( ($request_type == 'SSL') && isset($HTTP_GET_VARS[tep_session_name()]) ) {
     tep_session_id($HTTP_GET_VARS[tep_session_name()]);
   }

// start the session
  $session_started = false;
  if (SESSION_FORCE_COOKIE_USE == 'True') {
    tep_setcookie('cookie_test', 'please_accept_for_session', time()+60*60*24*30, $cookie_path, $cookie_domain);

if (isset($HTTP_COOKIE_VARS['cookie_test'])) {
  tep_session_start();
  $session_started = true;
}
  } elseif (SESSION_BLOCK_SPIDERS == 'True') {
    $user_agent = strtolower(getenv('HTTP_USER_AGENT'));
    $spider_flag = false;

if (tep_not_null($user_agent)) {
  $spiders = file(DIR_WS_INCLUDES . 'spiders.txt');

  for ($i=0, $n=sizeof($spiders); $i<$n; $i++) {
    if (tep_not_null($spiders[$i])) {
      if (is_integer(strpos($user_agent, trim($spiders[$i])))) {
        $spider_flag = true;
        break;
      }
    }
  }
}

if ($spider_flag == false) {
  tep_session_start();
  $session_started = true;
}
  } else {
    tep_session_start();
    $session_started = true;
  }

  if ( ($session_started == true) && (PHP_VERSION >= 4.3) && function_exists('ini_get') && (ini_get('register_globals') == false) ) {
    extract($_SESSION, EXTR_OVERWRITE+EXTR_REFS);
  }

// set SID once, even if empty
  $SID = (defined('SID') ? SID : '');

// verify the ssl_session_id if the feature is enabled
  if ( ($request_type == 'SSL') && (SESSION_CHECK_SSL_SESSION_ID == 'True') && (ENABLE_SSL == true) && ($session_started == true) ) {
    $ssl_session_id = getenv('SSL_SESSION_ID');
    if (!tep_session_is_registered('SSL_SESSION_ID')) {
      $SESSION_SSL_ID = $ssl_session_id;
      tep_session_register('SESSION_SSL_ID');
    }

if ($SESSION_SSL_ID != $ssl_session_id) {
  tep_session_destroy();
  tep_redirect(tep_href_link(FILENAME_SSL_CHECK));
}
  }

// verify the browser user agent if the feature is enabled
  if (SESSION_CHECK_USER_AGENT == 'True') {
    $http_user_agent = getenv('HTTP_USER_AGENT');
    if (!tep_session_is_registered('SESSION_USER_AGENT')) {
      $SESSION_USER_AGENT = $http_user_agent;
      tep_session_register('SESSION_USER_AGENT');
    }

if ($SESSION_USER_AGENT != $http_user_agent) {
  tep_session_destroy();
  tep_redirect(tep_href_link(FILENAME_LOGIN));
}
  }

[Lowryder1]

// verify the IP address if the feature is enabled
  if (SESSION_CHECK_IP_ADDRESS == 'True') {
    $ip_address = tep_get_ip_address();
    if (!tep_session_is_registered('SESSION_IP_ADDRESS')) {
      $SESSION_IP_ADDRESS = $ip_address;
      tep_session_register('SESSION_IP_ADDRESS');
    }

if ($SESSION_IP_ADDRESS != $ip_address) {
  tep_session_destroy();
  tep_redirect(tep_href_link(FILENAME_LOGIN));
}
  }

// create the shopping cart & fix the cart if necesary
  if (tep_session_is_registered('cart') && is_object($cart)) {
    if (PHP_VERSION < 4) {
      $broken_cart = $cart;
      $cart = new shoppingCart;
      $cart->unserialize($broken_cart);
    }
  } else {
    tep_session_register('cart');
    $cart = new shoppingCart;
  }

// include currencies class and create an instance
  require(DIR_WS_CLASSES . 'currencies.php');
  $currencies = new currencies();

// include the mail classes
  require(DIR_WS_CLASSES . 'mime.php');
  require(DIR_WS_CLASSES . 'email.php');

// file uploading class
  require(DIR_WS_CLASSES . 'upload.php');


// set the language
  if (!tep_session_is_registered('language') || isset($HTTP_GET_VARS['language'])) {
    if (!tep_session_is_registered('language')) {
      tep_session_register('language');
      tep_session_register('languages_id');
    }

include(DIR_WS_CLASSES . 'language.php');
$lng = new language();

if (isset($HTTP_GET_VARS['language']) && tep_not_null($HTTP_GET_VARS['language'])) {
  $lng->set_language($HTTP_GET_VARS['language']);
} else {
  $lng->get_browser_language();
}

$language = $lng->language['directory'];
$languages_id = $lng->language['id'];
  }

// include the language translations
  require(DIR_WS_LANGUAGES . $language . '.php');

// currency
  if (!tep_session_is_registered('currency') || isset($HTTP_GET_VARS['currency']) || ( (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') && (LANGUAGE_CURRENCY != $currency) ) ) {
    if (!tep_session_is_registered('currency')) tep_session_register('currency');

if (isset($HTTP_GET_VARS['currency']) && $currencies->is_set($HTTP_GET_VARS['currency'])) {
  $currency = $HTTP_GET_VARS['currency'];
} else {
  $currency = (USE_DEFAULT_LANGUAGE_CURRENCY == 'true') ? LANGUAGE_CURRENCY : DEFAULT_CURRENCY;
}
  }

[Lowryder1]

// calculate category path
  if (isset($HTTP_GET_VARS['cPath'])) {
    $cPath = $HTTP_GET_VARS['cPath'];
  } elseif (isset($HTTP_GET_VARS['products_id']) && !isset($HTTP_GET_VARS['manufacturers_id'])) {
    $cPath = tep_get_product_path($HTTP_GET_VARS['products_id']);
  } else {
    $cPath = '';
  }

  if (tep_not_null($cPath)) {
    $cPath_array = tep_parse_category_path($cPath);
    $cPath = implode('_', $cPath_array);
    $current_category_id = $cPath_array[(sizeof($cPath_array)-1)];
  } else {
    $current_category_id = 0;
  }

// include the breadcrumb class and start the breadcrumb trail
  require(DIR_WS_CLASSES . 'breadcrumb.php');
  $breadcrumb = new breadcrumb;

  $breadcrumb->add(HEADER_TITLE_TOP, HTTP_SERVER);
  $breadcrumb->add(HEADER_TITLE_CATALOG, tep_href_link(FILENAME_DEFAULT));

// add category names or the manufacturer name to the breadcrumb trail
  if (isset($cPath_array)) {
    for ($i=0, $n=sizeof($cPath_array); $i<$n; $i++) {
      $categories_query = tep_db_query("select categories_name from " . TABLE_CATEGORIES_DESCRIPTION . " where categories_id = '" . (int)$cPath_array[$i] . "' and language_id = '" . (int)$languages_id . "'");
      if (tep_db_num_rows($categories_query) > 0) {
        $categories = tep_db_fetch_array($categories_query);
        $breadcrumb->add($categories['categories_name'], tep_href_link(FILENAME_DEFAULT, 'cPath=' . implode('_', array_slice($cPath_array, 0, ($i+1)))));
      } else {
        break;
      }
    }
  } elseif (isset($HTTP_GET_VARS['manufacturers_id'])) {
    $manufacturers_query = tep_db_query("select manufacturers_name from " . TABLE_MANUFACTURERS . " where manufacturers_id = '" . (int)$HTTP_GET_VARS['manufacturers_id'] . "'");
    if (tep_db_num_rows($manufacturers_query)) {
      $manufacturers = tep_db_fetch_array($manufacturers_query);
      $breadcrumb->add($manufacturers['manufacturers_name'], tep_href_link(FILENAME_DEFAULT, 'manufacturers_id=' . $HTTP_GET_VARS['manufacturers_id']));
    }
  }

// add the products model to the breadcrumb trail
  if (isset($HTTP_GET_VARS['products_id'])) {
    $model_query = tep_db_query("select products_model from " . TABLE_PRODUCTS . " where products_id = '" . (int)$HTTP_GET_VARS['products_id'] . "'");
    if (tep_db_num_rows($model_query)) {
      $model = tep_db_fetch_array($model_query);
      $breadcrumb->add($model['products_model'], tep_href_link(FILENAME_PRODUCT_INFO, 'cPath=' . $cPath . '&products_id=' . $HTTP_GET_VARS['products_id']));
    }
  }

// initialize the message stack for output messages
  require(DIR_WS_CLASSES . 'message_stack.php');
  $messageStack = new messageStack;

// set which precautions should be checked
  define('WARN_INSTALL_EXISTENCE', 'true');
  define('WARN_CONFIG_WRITEABLE', 'true');
  define('WARN_SESSION_DIRECTORY_NOT_WRITEABLE', 'true');
  define('WARN_SESSION_AUTO_START', 'true');
  define('WARN_DOWNLOAD_DIRECTORY_NOT_READABLE', 'true');
?>