Does not work on my Twenties theme please help

Hi @savagepriest.

Yes, it looks like you’ll have to tweak your theme. In particular, you must find where that HTML is printed (functions.php or single.php or archive.php or any other helper file) and tweak it.

For example, this other ticket contains an example of how the theme prints a featured image. My reply describes how you can “overwrite” that behavior and show an external featured image (if any) instead.

It’s been two weeks since OP shared his question. I’ll mark this topic as resolved.

Thanks I will try that David if it works it will surely be a great benefit and I will be forced to make a small donation for your great work.
Thanks god bless.

Dear David
thanks for the help I found this code in my theme function folder /functions/featured-image.php can you please help with the below code where should I inser the code suggested by you.

<?php
/**
 * Returns a post featured image URl
 * @package WordPress
*/

// Returns the site featured image
if ( ! function_exists( 'wpex_image' ) ) {
		function wpex_image( $return = 'url', $id = '', $custom_query = false ) {
			// Post Vars
			global $post;
			$post_id = $post->ID;
			$post_type = get_post_type( $post_id );
			$attachment_id = $id ? $id : get_post_thumbnail_id( $post_id );
			$attachment_url = wp_get_attachment_url( $attachment_id );

			// Resizing Vars
			$width = '9999';
			$height = '9999';
			$crop = false;

			/**
				Pages
			**/
			if ( $post_type == 'page' && is_singular( 'page' ) ) {
				$width = '9999';
				$height = '9999';
			}

			/**
				Standard post
			**/
			if ( $post_type == 'post' ) {
				// Single Posts
				if ( is_singular() && !$custom_query ) {
					if ( wpex_sidebar_display() ) {
						$width = get_theme_mod( 'wpex_post_img_width', '670' );
						$height = get_theme_mod( 'wpex_post_img_height', '9999' );
					} else {
						$width = get_theme_mod( 'wpex_full_post_img_width', '1020' );
						$height = get_theme_mod( 'wpex_full_post_img_height', '9999' );
					}
				} elseif ( is_singular() && $custom_query ) {
					$width = get_theme_mod( 'wpex_related_entry_img_width', '210' );
					$height = get_theme_mod( 'wpex_related_entry_img_height', '120' );
				} else {
					// Entries
					$width = get_theme_mod( 'wpex_entry_img_width', '670' );
					$height = get_theme_mod( 'wpex_entry_img_height', '9999' );
					if ( '1' == wpex_grid_columns() ) {
						$width = get_theme_mod( 'wpex_full_post_img_width', '1020' );
						$height = get_theme_mod( 'wpex_full_post_img_height', '9999' );
					}
					// Blog template
					global $wpex_entry_columns;
					if ( '1' == $wpex_entry_columns ) {
						$width = '1020';
					}
				}
			}

			// Return Dimensions & crop
			$width = intval($width);
			$width = $width ? $width : '9999';
			$height = intval($height);
			$height = $height ? $height : '9999';
			$crop = ( $height == '9999' ) ? false : true;
			$resized_array = wpex_img_resize( $attachment_url, $width, $height, $crop, 'array' );

			if ( 'url' == $return ) {
				return $resized_array['url'];
			} elseif ( 'array' == $return ) {
				return $resized_array;
			}

		}
}

hi, can you take some money and fix my site please.
I am unable to put the code in there.