title: Opencart - Notice: Undefined index: saving in
body: <p>I'm using Opencart 1.5.6.1.</p>
  
  <p>In this page:
  <a href="http://jefferson.com.my/test/index.php?route=product/results&amp;category=%5B75%5D&amp;path=0&amp;filterProduct=1" rel="nofollow">http://jefferson.com.my/test/index.php?route=product/results&amp;category=[75]&amp;path=0&amp;filterProduct=1</a></p>
  
  <p>There's error in some products, 
  SAVE Notice: Undefined index: saving in /home/jefferso/public_html/test/vqmod/vqcache/vq2-catalog_view_theme_pav_fashion_template_product_category.tpl on line 147%</p>
  
  <p>It's because I install a mod that display the discounted percentage.
  It doesn't have problem displaying in category page, product page and home page, but if you try the filter on the left (tick T-shirt) which resulted in the page above, the error will show out.</p>
  
  <p>I don't know how to deal with that cache file, and the theme developer doesn't want to help at all.</p>