Wp-tiles shortcode only one subcategory

hello
I can not get the post show only selected category.php subcategory ..
These are the shortcodes

[wp-tiles post_type=”post” posts_per_page=”2″ orderby=”date” order=”DESC” category=”198″ grids=”2category” small_screen_grid=”mobile” breakpoint=”800″ padding=”5″ grid_selector_color=”#a52a2a”]

OR

[wp-tiles post_type=”post” posts_per_page=”2″ orderby=”date” order=”DESC” category=”0-2 Anys” grids=”2category” small_screen_grid=”mobile” breakpoint=”800″ padding=”5″ grid_selector_color=”#a52a2a”]

This is the code
Any idea what I’m doing wrong?

$cat = get_the_category() ;
$catname = $cat[0]->cat_ID ;
$content='[wp-tiles post_type=”post” posts_per_page=”2″ orderby=”date” order=”DESC” category=”‘. $catname .'” grids=”2category” ……
echo do_shortcode( $content ) ;

https://ww.wp.xz.cn/plugins/wp-tiles/