Error following update 5.9.

Hello, until now my custom template worked perfectly however since the last WP update I have this error when I try to create an invoice.

I would like to point out that I have changed absolutely nothing in the configuration or in the invoice.php file.

Attached image : https://zupimages.net/viewer.php?id=22/07/kfoo.jpg

And my template :

<?php if ( ! defined( ‘ABSPATH’ ) ) exit; // Exit if accessed directly ?>

<?php do_action( ‘wpo_wcpdf_before_document’, $this->type, $this->order ); ?>

<table class=”head container”>

<tr>

<td class=”header”>

<?php

if( $this->has_header_logo() ) {

$this->header_logo();

} else {

echo $this->get_title();

}

?>

</td>

<td class=”shop-info”>

<?php do_action( ‘wpo_wcpdf_before_shop_name’, $this->type, $this->order ); ?>

<div class=”shop-name”><h3><?php $this->shop_name(); ?></h3></div>

<?php do_action( ‘wpo_wcpdf_after_shop_name’, $this->type, $this->order ); ?>

<?php do_action( ‘wpo_wcpdf_before_shop_address’, $this->type, $this->order ); ?>

<div class=”shop-address”><?php $this->shop_address(); ?></div>

<?php do_action( ‘wpo_wcpdf_after_shop_address’, $this->type, $this->order ); ?>

</td>

</tr>

</table>

<h1 class=”document-type-label”>

<?php if( $this->has_header_logo() ) echo $this->get_title(); ?>

</h1>

<?php do_action( ‘wpo_wcpdf_after_document_label’, $this->type, $this->order ); ?>

<table class=”order-data-addresses”>

<tr>

<td class=”address billing-address”>

<!– <h3><?php _e( ‘Billing Address:’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></h3> –>

<?php do_action( ‘wpo_wcpdf_before_billing_address’, $this->type, $this->order ); ?>

<?php $this->billing_address(); ?>

<?php do_action( ‘wpo_wcpdf_after_billing_address’, $this->type, $this->order ); ?>

<?php if ( isset($this->settings[‘display_email’]) ) { ?>

<div class=”billing-email”><?php $this->billing_email(); ?></div>

<?php } ?>

<?php if ( isset($this->settings[‘display_phone’]) ) { ?>

<div class=”billing-phone”><?php $this->billing_phone(); ?></div>

<?php } ?>

</td>

<td class=”address shipping-address”>

<?php if ( !empty($this->settings[‘display_shipping_address’]) && ( $this->ships_to_different_address() || $this->settings[‘display_shipping_address’] == ‘always’ ) ) { ?>

<h3><?php _e( ‘Ship To:’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></h3>

<?php do_action( ‘wpo_wcpdf_before_shipping_address’, $this->type, $this->order ); ?>

<?php $this->shipping_address(); ?>

<?php do_action( ‘wpo_wcpdf_after_shipping_address’, $this->type, $this->order ); ?>

<?php } ?>

</td>

<td class=”order-data”>

<table>

<?php do_action( ‘wpo_wcpdf_before_order_data’, $this->type, $this->order ); ?>

<?php if ( isset($this->settings[‘display_number’]) ) { ?>

<tr class=”invoice-number”>

<th><?php _e( ‘Invoice Number:’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></th>

<td><?php $this->invoice_number(); ?></td>

</tr>

<?php } ?>

<?php if ( isset($this->settings[‘display_date’]) ) { ?>

<tr class=”invoice-date”>

<th><?php _e( ‘Invoice Date:’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></th>

<td><?php $this->invoice_date(); ?></td>

</tr>

<?php } ?>

<tr class=”order-date”>

<th><?php _e( ‘Order Date:’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></th>

<td><?php $this->order_date(); ?></td>

</tr>

<tr class=”payment-method”>

<th><?php _e( ‘Payment Method:’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></th>

<td><?php $this->payment_method(); ?></td>

</tr>

<tr class=”payment-method”>

<th><?php _e( ‘Date de règlement:’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></th>

<td><?php $this->order_date(); ?></td>

</tr>

<?php do_action( ‘wpo_wcpdf_after_order_data’, $this->type, $this->order ); ?>

</table>

</td>

</tr>

</table>

<?php do_action( ‘wpo_wcpdf_before_order_details’, $this->type, $this->order ); ?>

<table class=”order-details”>

<thead>

<tr>

<th class=”product”><?php _e(‘Désignation des produits’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></th>

<th class=”quantity”><?php _e(‘Quantity’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></th>

<th class=”price”><?php _e(‘Prix unitaire Hors Taxe’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></th>

<th class=”total price”><?php _e(‘Prix total Hors Taxe’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></th>

</tr>

</thead>

<tbody>

<?php $items = $this->get_order_items(); if( sizeof( $items ) > 0 ) : foreach( $items as $item_id => $item ) : ?>

<tr class=”<?php echo apply_filters( ‘wpo_wcpdf_item_row_class’, $item_id, $this->type, $this->order, $item_id ); ?>”>

<td class=”product”>

<?php $description_label = __( ‘Description’, ‘woocommerce-pdf-invoices-packing-slips’ ); // registering alternate label translation ?>

<span class=”item-name”><?php echo $item[‘name’]; ?></span>

<?php do_action( ‘wpo_wcpdf_before_item_meta’, $this->type, $item, $this->order ); ?>

<span class=”item-meta”><?php echo $item[‘meta’]; ?></span>

<dl class=”meta”>

<?php $description_label = __( ‘SKU’, ‘woocommerce-pdf-invoices-packing-slips’ ); // registering alternate label translation ?>

<?php if( !empty( $item[‘sku’] ) ) : ?><dt class=”sku”><?php _e( ‘SKU:’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></dt><dd class=”sku”><?php echo $item[‘sku’]; ?></dd><?php endif; ?>

<?php if( !empty( $item[‘weight’] ) ) : ?><dt class=”weight”><?php _e( ‘Weight:’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></dt><dd class=”weight”><?php echo $item[‘weight’]; ?><?php echo get_option(‘woocommerce_weight_unit’); ?></dd><?php endif; ?>

</dl>

<?php do_action( ‘wpo_wcpdf_after_item_meta’, $this->type, $item, $this->order ); ?>

</td>

<td class=”quantity”><?php echo $item[‘quantity’]; ?></td>

<td class=”price”><?php echo $item[‘order_price’]; ?></td>

<td class=”total price”><?php echo $item[‘order_price’]; ?></td>

</tr>

<?php endforeach; endif; ?>

</tbody>

<tfoot>

<tr class=”no-borders”>

<td class=”no-borders”>

<div class=”document-notes”>

<?php do_action( ‘wpo_wcpdf_before_document_notes’, $this->type, $this->order ); ?>

<?php if ( $this->get_document_notes() ) : ?>

<h3><?php _e( ‘Notes’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></h3>

<?php $this->document_notes(); ?>

<?php endif; ?>

<?php do_action( ‘wpo_wcpdf_after_document_notes’, $this->type, $this->order ); ?>

</div>

<div class=”customer-notes”>

<?php do_action( ‘wpo_wcpdf_before_customer_notes’, $this->type, $this->order ); ?>

<?php if ( $this->get_shipping_notes() ) : ?>

<h3><?php _e( ‘Customer Notes’, ‘woocommerce-pdf-invoices-packing-slips’ ); ?></h3>

<?php $this->shipping_notes(); ?>

<?php endif; ?>

<?php do_action( ‘wpo_wcpdf_after_customer_notes’, $this->type, $this->order ); ?>

</div>

</td>

<td class=”no-borders” colspan=”3″>

<table class=”totals”>

<tfoot>

<tr>

<th class=”td” scope=”col” colspan=”3″ style=”text-align:<?php echo esc_attr( $text_align ); ?>;”>Sous-total H.T.</th>

<td class=”td” scope=”col” style=”text-align:<?php echo $item[‘order_price’]; ?></td>
</tr>

<tfoot>

<th class=”td” scope=”col” colspan=”3″ style=”text-align:<?php echo esc_attr( $text_align ); ?>;”>Montant Total H.T.</th>

<td class=”td” scope=”col” style=”text-align:<?php echo $item[‘order_price’]; ?></td>

</tr>

</tfoot>

</table>
<br>
TVA non applicable – article 293 B du CGI

</tr>

</tfoot>

</table>

<div class=”bottom-spacer”></div>

<?php do_action( ‘wpo_wcpdf_after_order_details’, $this->type, $this->order ); ?>

<?php if ( $this->get_footer() ): ?>

<div id=”footer”>

<!– hook available: wpo_wcpdf_before_footer –>

<?php $this->footer(); ?>

<!– hook available: wpo_wcpdf_after_footer –>

</div><!– #letter-footer –>

<?php endif; ?>

<?php do_action( ‘wpo_wcpdf_after_document’, $this->type, $this->order ); ?>

Thank you for your help.