What is the main issue the user is facing when trying to display category images instead of feature images in a Wordpress blog using PHP?

The main issue the user is facing is likely related to retrieving and displaying category images instead of feature images in a Wordpress blog. To solve this issue, the user can modify the PHP code that fetches the category images and displays them on the blog page.

<?php
// Get the category image URL
$category_image = get_field('category_image', 'category_' . get_query_var('cat'));

// Display the category image
if ($category_image) {
    echo '<img src="' . $category_image['url'] . '" alt="' . $category_image['alt'] . '">';
}
?>