Hello, I have made a field to add to the Woocommerce attributes. I have added a picture below for more clearancy.

I am trying to display the field on the single product page. I have added the following code to the content-single-product.php template file.
$terms = get_the_terms( $product->id, 'pa_merk');
var_dump($terms);
$image = get_field('afbeelding_merk', $terms->taxonomy . '_' . $terms->slug);
// Display the image if it exists
if ($image) {
echo '<img src="' . $image . '" />';
} else {
echo "<p>Foto niet gevonden.</p>";
}
What am I doing wrong?