Solved.
The issue was that i did’nt change image size name in file functions-acadp-html.php.
I changed ‘medium’ size for ‘large’ in line 237 and it works correctly.
$image_attributes = wp_get_attachment_image_src( $images[0], ‘large‘ );
Then i set the img attribute:
.acadp .thumbnail img {
width: 100%;
}
in css and it works perfectly.
