There was another problem with the functions.php, it´s working now 🙂
Here is the part I commented out (just found the master of the file)
function sparkling_posted_on() {
$time_string = ‘<time class=”entry-date published” datetime=”%1$s”>%2$s</time>’;
if ( get_the_time( ‘U’ ) !== get_the_modified_time( ‘U’ ) ) {
$time_string .= ‘<time class=”updated” datetime=”%3$s”>%4$s</time>’;
}
(https://github.com/puikinsh/Sparkling/blob/master/inc/template-tags.php)
