PRoblem with SPorty after transfer at another hosting

I experience several problems after transfer of my sporty theme on new hosting.

Lets start with this:
Warning: Cannot modify header information - headers already sent by (output started at /data/web/virtuals/206754/virtual/www/domains/skkelti.cz/wp-content/themes/sporty-child/functions.php:11) in /data/web/virtuals/206754/virtual/www/domains/skkelti.cz/wp-includes/pluggable.php on line 1252

At the line is this function:

	if ( ! $is_IIS && PHP_SAPI != 'cgi-fcgi' ) {
			status_header( $status );
		} // This causes problems on IIS and some FastCGI setups

		header( "Location: $location", true, $status );

Tried comment it, not working

The page I need help with: [log in to see the link]