Unhandled Error!

Call to a member function page_url() on null

Document /modules/cms/classes/cms_controller.php(383) : eval()'d code
Document type PHP document
Line 9
Exception class Error
# Call Stack Code Document Line
11 eval(()) /modules/cms/classes/cms_controller.php 383
10 Cms_Controller->evalWithException('?><nav class="breadcrumb"> <div class="row"> <div class="twelve columns"> <ul> <li> <a href="<?php echo root_url('/'); ?>">Home</a> </li> <li> <a href="<?php echo $product->page_url('/product'); ?>"><?php echo $product->name; ?></a> </li> </ul> </div> </div> </nav> <section class="content"> <section id="product" class="product top block"> <?php $this->render_partial('shop:product', array( 'product' => $product )); ?> </section> <?php if($product->list_related_products()->find_all()->count): ?> <section class="related-products bottom block"> <div class="row"> <div class="twelve columns"> <div class="title-block"> <h5 class="display">Other Related Products</h5> </div> </div> </div> <div class="row"> <?php $this->render_partial('shop:product_list', array( 'products' => $product->list_related_products()->find_all(), 'class' => 'no-border three' )); ?> </div> </section> <?php endif; ?> <div id="product-added" class="reveal-modal medium"> <div class="row"> <div class="twelve columns"> <h5>Your product has been added to the cart</h5> </div> </div> <div class="row"> <div class="hide-for-small four columns"> <?php $image = $product->om('images')->first; $image = $image ? $image->thumb(320, 240) : 'http://placehold.it/80x60'; ?> <img src="<?php echo $image; ?>" alt="" /> </div> <div class="eight columns"> <h5><?php echo $product->name; ?></h5> <p><?php echo $product->short_description; ?></p> </div> </div> <div class="row"> <div class="six columns"> <a href="#" class="button small secondary" onclick="$('#product-added').trigger('reveal:close'); return false;"><i class="foundicon-left-arrow"></i> Continue shopping</a> </div> <div class="six columns"> <a href="<?php echo root_url('/cart'); ?>" class="button small right">View my cart <i class="foundicon-right-arrow"></i></a> </div> </div> <a class="close-reveal-modal">&#215;</a> </div> </section>', 'CMS page', 'Product') /modules/cms/classes/cms_controller.php 608
9 Cms_Controller->eval_page_content(()) /modules/cms/classes/cms_controller.php 198
8 Cms_Controller->open(object(Cms_Page), array(0)) /controllers/application.php 72
7 Application->On404(()) /phproad/modules/phpr/classes/phpr_controller.php 170
6 Phpr_Controller->executeAction('On404', array(0)) /phproad/modules/phpr/classes/phpr_controller.php 84
5 Phpr_Controller->_run('On404', array(0)) /phproad/modules/phpr/classes/phpr_response.php 64
4 Phpr_Response->open404(()) /phproad/modules/phpr/classes/phpr_response.php 37
3 Phpr_Response->open('/product') /phproad/system/phproad.php 31
2 include('/home/clmi/httpdocs/public/phproad/system/phproad.php') /boot.php 114
1 require_once('/home/clmi/httpdocs/public/boot.php') /index.php 3