If you WordPress site, have contributors users, there are some limitation. The big problem is your contributors can’t upload files on your WordPress site. The solutions of this problem is really simple. We need to add some functions in your current theme.
Allow Contributors to Upload Files - Nicole Scherzinger
He we go what you should do. Open functions.php and write down this code
if ( current_user_can('contributor') && !current_user_can('upload_files') )
add_action('admin_init', 'allow_contributor_uploads');
function allow_contributor_uploads() {
$contributor = get_role('contributor');
$contributor->add_cap('upload_files');
}
