shortcode in widget area not working

I’m using the wordpress php widget but I am unable to process WordPress shortcode – the php just renders the shortcode instead of processing it. HEre is what I did

Added filters to my active theme function.php file

add_filter('widget_text', 'shortcode_unautop');
add_filter('widget_text', 'do_shortcode');

// Allow shortcodes in php code widget
add_filter('widget_execphp', 'shortcode_unautop');
add_filter('widget_execphp', 'do_shortcode');

Added the following to the php widget

<?php
$id = get_the_ID();
$amazon_product_asin_value = get_post_meta($id, 'amazon_product_asin', true);
  echo do_shortcode('<div> [amazon asin=' . $amazon_product_asin_value . '&template=buynowamazon_widget&chan=default] </div>');
?>

I also tried without do_shortcode and same result.

2 properly outputs the shortcode of

[amazon asin=B008I20FT8&template=buynowamazon_widget&chan=default]

which works fine if I just enter this in the standard text widget

Any ideas?

https://www.ads-software.com/extend/plugins/amazon-link/