Image ALT

Hi everyone,

I’m using the sensible pro theme and I don’t know why but my images in the team section (home page with slider) can’t have an ALT atribution.
I verified this in my media section in the dashboard and it’s ok for these pictures.

Maybye this code (on home page model) is wrong?
<?php if ( get_theme_mod( ‘member_image_1’ ) ) : ?>
<img src=”<?php echo esc_url( get_theme_mod( ‘member_image_1’ ) ); ?>” alt=”<?php echo esc_attr( get_bloginfo( ‘name’, ‘display’ ) ); ?>”>
<?php endif; ?>

How can I resolved this problem?
Thank’ in advance!