Limiting Order Quantity Based On Attribute

I am trying to limit the order quantity of products with a specific attribute, not sure where I am going wrong, here is the code

add_action( 'woocommerce_check_cart_items', 'wc_max_item_required_qty' );
function wc_max_item_required_qty() {
	$max_qty   = 50; // Max
    $qty_count = 0; // Initializing
	$attr_val = "inflated"; //attr
	
	// Loop through cart items
    foreach ( WC()->cart->get_cart() as $cart_item ){
		if( $cart_item['variation_id'] > 0 ){
			// Loop through product attributes values set for the variation
			foreach( $cart_item['variation'] as $term_slug ){
				// comparing attribute term value with current attribute value
				if ( $term_slug === $attr_val ) {
					$qty_count += 1;
				}
			}
		}
	}

    // Display error notice avoiding checkout
    if($qty_count > $max_qty ) {
        wc_clear_notices(); // Clear all other notices
		
        // Add an error notice (and avoid checkout).
        wc_add_notice( sprintf(__("Max %s inflated items per order.", "woocommerce"),'<strong>' . $max_qty . '</strong>',), 'error' );
    }
}