Hallo Alinka,
I can’t get any further, what’s wrong, shopping cart isn’t loading ??? here what i changed
madang commerce is ok, works, only cart total doesn’t work ???

*/

defined( ‘ABSPATH’ ) || exit;

$madang_brennwertsKcal_total = $madang_brennwertsKj_total = $madang_fetts_total = $madang_davonGesättigteFettsäurens_total = $madang_kohlenhydrates_total = $madang_davonZuckers_total = $madang_ballaststoffes_total = $madang_eiweißs_total = $madang_salzs_total = 0;
foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
$_product = apply_filters( ‘woocommerce_cart_item_product’, $cart_item[‘data’], $cart_item, $cart_item_key );
$product_id = apply_filters( ‘woocommerce_cart_item_product_id’, $cart_item[‘product_id’], $cart_item, $cart_item_key );

$madang_title = get_post_meta( $product_id, ‘madang_title’, ”);
if( sizeof($madang_title)==0 ) $madang_title[0] = ”;

$madang_Brennwert (kcal) = get_post_meta( $product_id, ‘madang_brennwertsKcal’, ”);
if( sizeof($madang_brennwertsKcal)==0 ) { $madang_brennwertsKcal[0] = ”; }else{ $madang_brennwertsKcal_total += (intval($madang_brennwertsKcal[0]) * $cart_item[‘quantity’]); }

$madang_Brennwert (kj) = get_post_meta( $product_id, ‘madang_brennwertsKj’, ”);
if( sizeof($madang_brennwertsKj)==0 ) { $madang_brennwertsKj[0] = ”; }else{ $madang_brennwertsKj_total += (intval($madang_brennwertsKj[0]) * $cart_item[‘quantity’]); }

$madang_Fett = get_post_meta( $product_id, ‘madang_fetts’, ”);
if( sizeof($madang_fetts)==0 ) { $madang_fetts[0] = ”; }else{ $madang_fetts_total += (intval($madang_fetts[0]) * $cart_item[‘quantity’]); }

$madang_…davon gesättigte Fettsäuren = get_post_meta( $product_id, ‘madang_davonGesättigteFettsäurens’, ”);
if( sizeof($madang_davonGesättigteFettsäurens)==0 ) { $madang_davonGesättigteFettsäurens[0] = ”; }else{ $madang_davonGesättigteFettsäurens_total += (intval($madang_davonGesättigteFettsäurens[0]) * $cart_item[‘quantity’]); }

$madang_Kohlenhydrate = get_post_meta( $product_id, ‘madang_kohlenhydrates’, ”);
if( sizeof($madang_kohlenhydrates)==0 ) { $madang_kohlenhydrates[0] = ”; }else{ $madang_kohlenhydrates_total += (intval($madang_kohlenhydrates[0]) * $cart_item[‘quantity’]); }

$madang_…davon Zucker = get_post_meta( $product_id, ‘madang_davonZuckers’, ”);
if( sizeof($madang_davonZuckers)==0 ) { $madang_davonZuckers[0] = ”; }else{ $madang_davonZuckers_total += (intval($madang_davonZuckers[0]) * $cart_item[‘quantity’]); }

$madang_Ballaststoffe = get_post_meta( $product_id, ‘madang_ballaststoffes’, ”);
if( sizeof($madang_ballaststoffes)==0 ) { $madang_ballaststoffes[0] = ”; }else{ $madang_ballaststoffes_total += (intval($madang_ballaststoffes[0]) * $cart_item[‘quantity’]); }

$madang_Eiweiß = get_post_meta( $product_id, ‘madang_eiweißs’, ”);
if( sizeof($madang_eiweißs)==0 ) { $madang_eiweißs[0] = ”; }else{ $madang_eiweißs_total += (intval($madang_eiweißs[0]) * $cart_item[‘quantity’]); }

$madang_Salz = get_post_meta( $product_id, ‘madang_salzs’, ”);
if( sizeof($madang_salzs)==0 ) { $madang_salzs[0] = ”; }else{ $madang_salzs_total += (intval($madang_salzs[0]) * $cart_item[‘quantity’]); }

}
?>
<div class=”cart_totals <?php echo ( WC()->customer->has_calculated_shipping() ) ? ‘calculated_shipping’ : ”; ?>”>

<?php if ( 1 != get_theme_mod( ‘madang_cart_nutrition’ ) ) : ?>

<!– nutrition–>
<div class=”col-xs-12 col-sm-5 wow fadeInLeft”>
<div class=”nutrition-fact nutrition-fact-ajax”>
<h6><?php echo esc_html__(‘Nutrition Facts Calculated’, ‘madang’); ?></h6>
<div class=”facts-table”>
<table>
<tbody>
<tr>
<td><span><?php echo esc_html__(‘Brennwert (kcal)’, ‘madang’); ?></span></td>
<td><span class=”cart_brennwertsKcal”><?php echo esc_attr(number_format($madang_brennwertsKcal_total,0,” “,” “).$metering_cal); ?></span></td>
</tr>
<tr>
<td><span class=”cart_brennwertsKj”><?php echo esc_html__(‘Brennwert (kj)’, ‘madang’); ?></span></td>
<td><span><?php echo esc_attr(number_format($madang_brennwertsKj_total,0,” “,” “).$metering); ?></span></td>
</tr>
<tr>
<td><span><?php echo esc_html__(‘Fett’, ‘madang’); ?></span></td>
<td><span class=”cart_fetts”><?php echo esc_attr(number_format($madang_fetts_total,0,” “,” “).$metering); ?></span></td>
</tr>
<tr>
<td><span><?php echo esc_html__(‘…davon gesättigte Fettsäuren’, ‘madang’); ?></span></td>
<td><span class=”cart_davonGesättigteFettsäurens”><?php echo esc_attr(number_format($madang_davonGesättigteFettsäurens_total,0,” “,” “).$metering); ?></span></td>
</tr>
<tr>
<td><span><?php echo esc_html__(‘Kohlenhydrate’, ‘madang’); ?></span></td>
<td><span class=”cart_kohlenhydrates”><?php echo esc_attr(number_format($madang_kohlenhydrates_total,0,” “,” “).$metering); ?></span></td>
</tr>
<tr>
<td><span><?php echo esc_html__(‘…davon Zucker’, ‘madang’); ?></span></td>
<td><span class=”cart_davonZuckers”><?php echo esc_attr(number_format($madang_davonZuckers_total,0,” “,” “).$metering); ?></span></td>
</tr>
<tr>
<td><span><?php echo esc_html__(‘Ballaststoffe’, ‘madang’); ?></span></td>
<td><span class=”cart_ballaststoffes”><?php echo esc_attr(number_format($madang_ballaststoffes_total,0,” “,” “).$metering); ?></span></td>
</tr>
<tr>
<td><span><?php echo esc_html__(‘Eiweiß’, ‘madang’); ?></span></td>
<td><span class=”cart_eiweißs”><?php echo esc_attr(number_format($madang_eiweißs_total,0,” “,” “).$metering); ?></span></td>
</tr>
<tr>
<td><span><?php echo esc_html__(‘Salz’, ‘madang’); ?></span></td>
<td><span class=”cart_salzs”><?php echo esc_attr(number_format($madang_salzs_total,0,” “,” “).$metering); ?></span></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<!– nutritation ends–>

<?php //save nutrition calculations

set_theme_mod(‘madang_brennwertsKcal_total’, esc_attr(number_format($madang_brennwertsKcal_total,0,” “,” “).$metering_cal));
set_theme_mod(‘madang_brennwertsKj_total’, esc_attr(number_format($madang_brennwertsKj_total,0,” “,” “).$metering));
set_theme_mod(‘madang_fetts_total’, esc_attr(number_format($madang_fetts_total,0,” “,” “).$metering));
set_theme_mod(‘madang_davonGesättigteFettsäurens_total’, esc_attr(number_format($madang_davonGesättigteFettsäurens_total,0,” “,” “).$metering));
set_theme_mod(‘madang_kohlenhydrates_total’, esc_attr(number_format($madang_kohlenhydrates_total,0,” “,” “).$metering));
set_theme_mod(‘madang_davonZuckers_total’, esc_attr(number_format($madang_davonZuckers_total,0,” “,” “).$metering));
set_theme_mod(‘madang_ballaststoffes_total’, esc_attr(number_format($madang_ballaststoffes_total,0,” “,” “).$metering));
set_theme_mod(‘madang_eiweißs_total’, esc_attr(number_format($madang_eiweißs_total,0,” “,” “).$metering));
set_theme_mod(‘madang_salzs_total’, esc_attr(number_format($madang_salzs_total,0,” “,” “).$metering));
?>

<?php endif; ?>

it would be completely sufficient where I insert the changes.

your development team can take a look at it.