I can't find the DELETE button on the shopping cart page

I just realised that the 'DELETE' button for each product line has disappeared. When I look in firebug, the is empty, even though the code is where it should be in theme/shopping-cart.tpl. I have restored the original file but even then the DELETE button is missing.

How can I find out what is causing this?

My site is http://www.litografias.net/ . When you buy a product and you go to the car, you'll see that there is no DELETE button available to remove the product.

Any ideas would be greatly appreciated

My tbody of the shopping-cart.tpl is the following:

{assign var='odd' value=0}
{assign var='have_non_virtual_products' value=false}
{foreach $products as $product}
{if $product.is_virtual == 0}
{assign var='have_non_virtual_products' value=true}
{/if}
{assign var='productId' value=$product.id_product}
{assign var='productAttributeId' value=$product.id_product_attribute}
{assign var='quantityDisplayed' value=0}
{assign var='odd' value=($odd+1)%2}
{assign var='ignoreProductLast' value=isset($customizedDatas.$productId.$productAttributeId) || count($gift_products)}
{* Display the product line *}
{include file="$tpl_dir./shopping-cart-product-line.tpl" productLast=$product@last productFirst=$product@first}
{* Then the customized datas ones*}
{if isset($customizedDatas.$productId.$productAttributeId)}
{foreach $customizedDatas.$productId.$productAttributeId[$product.id_address_delivery] as $id_customization=>$customization}



{foreach $customization.datas as $type => $custom_data}
{if $type == $CUSTOMIZE_FILE}


{foreach $custom_data as $picture}

{/foreach}


{elseif $type == $CUSTOMIZE_TEXTFIELD}

{foreach $custom_data as $textField}

{if $textField.name}
{$textField.name}
{else}
{l s='Text #'}{$textField@index+1}
{/if}
: {$textField.value}

{/foreach}

{/if}
{/foreach}


{if isset($cannotModify) AND $cannotModify == 1}
{if $quantityDisplayed == 0 AND isset($customizedDatas.$productId.$productAttributeId)}{$customizedDatas.$productId.$productAttributeId|@count}{else}{$product.cart_quantity-$quantityDisplayed}{/if}
{else}



{if $product.minimal_quantity < ($customization.quantity -$quantityDisplayed) OR $product.minimal_quantity


{else}



{/if}




{/if}




{if isset($cannotModify) AND $cannotModify == 1}
{else}





{/if}


{assign var='quantityDisplayed' value=$quantityDisplayed+$customization.quantity}
{/foreach}


{* If it exists also some uncustomized products *}
{if $product.quantity-$quantityDisplayed > 0}{include file="$tpl_dir./shopping-cart-product-line.tpl" productLast=$product@last productFirst=$product@first}{/if}
{/if}
{/foreach}
{assign var='last_was_odd' value=$product@iteration%2}
{foreach $gift_products as $product}
{assign var='productId' value=$product.id_product}
{assign var='productAttributeId' value=$product.id_product_attribute}
{assign var='quantityDisplayed' value=0}
{assign var='odd' value=($product@iteration+$last_was_odd)%2}
{assign var='ignoreProductLast' value=isset($customizedDatas.$productId.$productAttributeId)}
{assign var='cannotModify' value=1}
{* Display the gift product line *}
{include file="$tpl_dir./shopping-cart-product-line.tpl" productLast=$product@last productFirst=$product@first}
{/foreach}

{if sizeof($discounts)}

{foreach $discounts as $discount}

{$discount.name}


{if !$priceDisplay}{displayPrice price=$discount.value_real*-1}{else}{displayPrice price=$discount.value_tax_exc*-1}{/if}


1

{if !$priceDisplay}{displayPrice price=$discount.value_real*-1}{else}{displayPrice price=$discount.value_tax_exc*-1}{/if}


{if strlen($discount.code)}



{/if}


{/foreach}

{/if}


I don't know if I'm looking the right .tpl

Here you have an image to see what i need to change:

http://i.imgur.com/zw44PGJ.png

This image should look like this:

http://i.imgur.com/TxqRqre.png