It seems to be a problem with this line in includes/class-gce-display.php:
line 72:
if ( $event->end_time > $event->start_time && $event->start_time < $event->end_time ) {
I changed to:
if ( $event->end_time > $event->start_time && $event->start_time > time() ) {
and I’m getting only today and later events.