My product VAT is not showing up anymore invoice.tax-tab.tpl code

[ptityop]

Hello,

We are migrating from 1.6 to latest version and when moving the template I realize that the invoice is not coming up right anymore, the shipping VAT amount is not showing on new invoices ... This is the code that was moved from the previous version maybe some variable has changed ?

<td class="" style="border: solid black 1px; padding: 5px" >{l s='TVA Livraison:' pdf='true'}{assign var=has_line value=false}<br />{foreach $tax_breakdowns as $label => $bd}{assign var=label_printed value=false}
                     {foreach $bd as $line}
                     {if $line.rate == 0}
                     {continue}
                     {/if}
                     {assign var=has_line value=true}
                     {if isset($is_order_slip) && $is_order_slip}- {/if}
                     {if $label == 'shipping_tax'}
                     {displayPrice currency=$order->id_currency price=$line.total_amount}
                     {/if}
                     {/foreach}
                     {/foreach}
                  </td>

Thanks in advance for any guidance .