PHP - The Whole String Not Being Printed

I'm trying to show on my order printed receipt some checkout fields and extras from the products.

The website is www.prontoitaliano.co.uk/shop

What needs to appear on the receipt are all the extras options from all the products(See checkboxes in all pasta dishes and checkboxes toppings in "create your own pizza") and 2 fields from the checkout page (Pick up Date, Pick up Time).

To send the order to the printer I'm using the "Star cloud PRNT woocommerce" plugin and for the pickup date and time fields "ultimate woocommerce delivery and pickup date time", I've attached below the code that needs to be edited to add more fields to the receipt. I know that probably it's not difficult to solve my issue but I don't have any knowledge of php and I hope you guys can assist me. Also, I've attached a picture showing what is missing on the printed receipt and what result I'm trying to get. Thanks for your time!

<?php
function star_cloudprnt_get_column_separated_data($columns)
{
    $max_chars = STAR_CLOUDPRNT_MAX_CHARACTERS_THREE_INCH;
    $total_columns = count($columns);

    if ($total_columns == 0) return "";
    if ($total_columns == 1) return $columns[0];
    if ($total_columns == 2)
    {
        $total_characters = strlen($columns[0])+strlen($columns[1]);
        $total_whitespace = $max_chars - $total_characters;
        if ($total_whitespace < 0) return "";
        return $columns[0].str_repeat(" ", $total_whitespace).$columns[1];
    }

    $total_characters = 0;
    foreach ($columns as $column)
    {
        $total_characters += strlen($column);
    }
    $total_whitespace = $max_chars - $total_characters;
    if ($total_whitespace < 0) return "";
    $total_spaces = $total_columns-1;
    $space_width = floor($total_whitespace / $total_spaces);
    $result = $columns[0].str_repeat(" ", $space_width);
    for ($i = 1; $i < ($total_columns-1); $i++)
    {
        $result .= $columns[$i].str_repeat(" ", $space_width);
    }
    $result .= $columns[$total_columns-1];

    return $result;
}

function star_cloudprnt_get_seperator()
{
    $max_chars = STAR_CLOUDPRNT_MAX_CHARACTERS_THREE_INCH;
    return str_repeat('_', $max_chars);
}

function star_cloudprnt_parse_order_status($status)
{
    if ($status === 'wc-pending') return 'Pending Payment';
    else if ($status === 'wc-processing') return 'Processing';
    else if ($status === 'wc-on-hold') return 'On Hold';
    else if ($status === 'wc-completed') return 'Completed';
    else if ($status === 'wc-cancelled') return 'Cancelled';
    else if ($status === 'wc-refunded') return 'Refunded';
    else if ($status === 'wc-failed') return 'Failed';
    else return "Unknown";
}

function star_cloudprnt_get_codepage_1252_currency_symbol()
{
    $symbol = get_woocommerce_currency_symbol();
    if ($symbol === "&pound;") return "\xA3"; // £ pound
    else if ($symbol === "&#36;") return "\x24"; // $ dollar
    else if ($symbol === "&euro;") return "\x80"; // € euro
    return ""; // return blank by default
}

function star_cloudprnt_get_formatted_variation($variation, $order, $item_id) 
{
    $return = '';
    if (is_array($variation))
    {
        $variation_list = array();
        foreach ($variation as $name => $value)
        {
            // If the value is missing, get the value from the item
            if (!$value)
            {
                $meta_name = esc_attr(str_replace('attribute_', '', $name));
                $value = $order->get_item_meta($item_id, $meta_name, true);
            }

            // If this is a term slug, get the term's nice name
            if (taxonomy_exists(esc_attr(str_replace('attribute_', '', $name))))
            {
                $term = get_term_by('slug', $value, esc_attr(str_replace('attribute_', '', $name)));
                if (!is_wp_error($term) && ! empty($term->name))
                {
                    $value = $term->name;
                }
            }
            else
            {
                $value = ucwords(str_replace( '-', ' ', $value ));
            }
            $variation_list[] = wc_attribute_label(str_replace('attribute_', '', $name)) . ': ' . rawurldecode($value);
        }
        $return .= implode('||', $variation_list);
    }
    return $return;
}

function star_cloudprnt_create_receipt_items($order, &$printer)
{
    $order_items = $order->get_items();
    foreach ($order_items as $item_id => $item_data)
    {
        $product_name = $item_data['name'];
        $product_id = $item_data['product_id'];
        $variation_id = $item_data['variation_id'];

        $item_qty = $order->get_item_meta($item_id, "_qty", true);
        $item_total_price = floatval($order->get_item_meta($item_id, "_line_total", true))
                        +floatval($order->get_item_meta($item_id, "_line_tax", true));
        $item_price = floatval($item_total_price) / intval($item_qty);
        $currencyHex = star_cloudprnt_get_codepage_1252_currency_symbol();
        $formatted_item_price = number_format($item_price, 2, '.', '');
        $formatted_total_price = number_format($item_total_price, 2, '.', '');

        $printer->set_text_emphasized();
        $printer->add_text_line(str_replace('&ndash;', '-', $product_name)." - ID: ".$product_id."");
        $printer->cancel_text_emphasized();

        if ($variation_id != 0)
        {
            $product_variation = new WC_Product_Variation( $variation_id );
            $variation_data = $product_variation->get_variation_attributes();
            $variation_detail = star_cloudprnt_get_formatted_variation($variation_data, $order, $item_id); 
            $exploded = explode("||", $variation_detail);
            foreach($exploded as $exploded_variation)
            {
                $printer->add_text_line(" ".ucwords($exploded_variation));
            }
        }
        $printer->add_text_line(star_cloudprnt_get_column_separated_data(array(" Qty: ".
                    $item_qty." x Cost: ".$currencyHex.$formatted_item_price,
                    $currencyHex.$formatted_total_price)));
    }
}

function star_cloudprnt_create_address($order, $order_meta, &$printer)
{
    $fname = $order_meta[_shipping_first_name][0];
    $lname = $order_meta[_shipping_last_name][0];
    $a1 = $order_meta[_shipping_address_1][0];
    $a2 = $order_meta[_shipping_address_2][0];
    $city = $order_meta[_shipping_city][0];
    $state = $order_meta[_shipping_state][0];
    $postcode = $order_meta[_shipping_postcode][0];
    $tel = $order_meta[_billing_phone][0];

    $printer->set_text_emphasized();
    if ($a1 == '')
    {
        $printer->add_text_line("Billing Address:");
        $printer->cancel_text_emphasized();
        $fname = $order_meta[_billing_first_name][0];
        $lname = $order_meta[_billing_last_name][0];
        $a1 = $order_meta[_billing_address_1][0];
        $a2 = $order_meta[_billing_address_2][0];
        $city = $order_meta[_billing_city][0];
        $state = $order_meta[_billing_state][0];
        $postcode = $order_meta[_billing_postcode][0];
    }
    else
    {
        $printer->add_text_line("Shipping Address:");
        $printer->cancel_text_emphasized();
    }

    $printer->add_text_line($fname." ".$lname);
    $printer->add_text_line($a1);
    if ($a2 != '') $printer->add_text_line($a2);
    if ($city != '') $printer->add_text_line($city);
    if ($state != '') $printer->add_text_line($state);
    if ($postcode != '') $printer->add_text_line($postcode);
    $printer->add_text_line("Tel: ".$tel);
}

function star_cloudprnt_print_order_summary($selectedPrinter, $file, $order_id)
{
    $order = wc_get_order($order_id);
    $shipping_items = @array_shift($order->get_items('shipping'));
    $order_meta = get_post_meta($order_id);

    $printer = new Star_CloudPRNT_Star_Line_Mode_Job($selectedPrinter, $file);
    $printer->set_codepage("20"); // 20 hex == 32 decimal == 1252 Windows Latin-1
    if (get_option('star-cloudprnt-print-logo-top-input')) $printer->add_nv_logo(esc_attr(get_option('star-cloudprnt-print-logo-top-input')));
    $printer->set_text_emphasized();
    $printer->set_text_center_align();
    $printer->add_text_line("ORDER NOTIFICATION");
    $printer->set_text_left_align();
    $printer->cancel_text_emphasized();
    $printer->add_new_line(1);
    $printer->add_text_line(star_cloudprnt_get_column_separated_data(array("Order #".$order_id, date("d-m-y H:i:s", time()))));
    $printer->add_new_line(1);
    $printer->add_text_line("Order Status: ".star_cloudprnt_parse_order_status($order->post->post_status));
    $printer->add_text_line("Order Date: ".$order->order_date);                     
    if (isset($shipping_items['name']))
    {
        $printer->add_new_line(1);
        $printer->add_text_line("Shipping Method: ".$shipping_items['name']);
    }
    $printer->add_text_line("Payment Method: ".$order_meta[_payment_method_title][0]);
    $printer->add_new_line(1);
    $printer->add_text_line(star_cloudprnt_get_column_separated_data(array('ITEM', 'TOTAL')));
    $printer->add_text_line(star_cloudprnt_get_seperator());

    star_cloudprnt_create_receipt_items($order, $printer);

    $printer->add_new_line(1);
    $printer->set_text_right_align();
    $formatted_overall_total_price = number_format($order_meta[_order_total][0], 2, '.', '');
    $printer->add_text_line("TOTAL     ".star_cloudprnt_get_codepage_1252_currency_symbol().$formatted_overall_total_price);
    $printer->set_text_left_align();
    $printer->add_new_line(1);
    $printer->add_text_line("All prices are inclusive of tax (if applicable).");
    $printer->add_new_line(1);

    star_cloudprnt_create_address($order, $order_meta, $printer);

    $printer->add_new_line(1);
    $printer->set_text_emphasized();
    $printer->add_text_line("Customer Provided Notes:");
    $printer->cancel_text_emphasized();
    $printer->add_text(empty($order->post->post_excerpt) ? "None" : $order->post->post_excerpt);
    if (get_option('star-cloudprnt-print-logo-bottom-input')) $printer->add_nv_logo(esc_attr(get_option('star-cloudprnt-print-logo-bottom-input')));

    $printer->printjob();
}

function star_cloudprnt_woo_on_thankyou($order_id)
{
    $file = STAR_CLOUDPRNT_PRINTER_PENDING_SAVE_PATH.star_cloudprnt_get_os_path("/order_".$order_id."_".time().".bin");

    $selectedPrinter = "";
    $printerList = star_cloudprnt_get_printer_list();
    if (!empty($printerList))
    {
        foreach ($printerList as $printer)
        {
            if (get_option('star-cloudprnt-printer-select') == $printer['name'])
            {
                $selectedPrinter = $printer['printerMAC'];
                break;
            }
        }

        if ($selectedPrinter === "" && count($printerList) === 1) $selectedPrinter = $printer['printerMAC'];

        if ($selectedPrinter !== "") star_cloudprnt_print_order_summary($selectedPrinter, $file, $order_id);
    }
}

function star_cloudprnt_setup_order_handler()
{
    if (selected(get_option('star-cloudprnt-select'), "enable", false) !== "" && star_cloudprnt_is_woo_activated())
    {
        add_action('woocommerce_thankyou', 'star_cloudprnt_woo_on_thankyou', 1, 1);
    }
}