Recent update broke my site

Just installed updated which was released around 40 minutes ago and now product page is all messed up. Getting following errors in debug.log file:

[04-Oct-2021 10:07:46 UTC] PHP Fatal error:  Uncaught Error: Using $this when not in object context in /var/www/google.com/html/wp-content/plugins/woo-advanced-product-size-chart/public/class-size-chart-for-woocommerce-public.php:278
Stack trace:
#0 /var/www/google.com/html/wp-includes/class-wp-hook.php(303): SCFW_Size_Chart_For_Woocommerce_Public::size_chart_popup_button_callback()
#1 /var/www/google.com/html/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters()
#2 /var/www/google.com/html/wp-includes/plugin.php(470): WP_Hook->do_action()
#3 /var/www/google.com/html/wp-content/themes/estore/woocommerce/content-single-product.php(66): do_action()
#4 /var/www/google.com/html/wp-includes/template.php(772): require('/var/www/google...')
#5 /var/www/google.com/html/wp-content/plugins/woocommerce/includes/wc-core-functions.php(284): load_template()
#6 /var/www/google.com/html/wp-content/themes/estore/woocommerce/single-product.php(59): wc_get_template_part()
#7 /var/www/google.com/html/wp-includes/template-loader.ph in /var/www/google.com/html/wp-content/plugins/woo-advanced-product-size-chart/public/class-size-chart-for-woocommerce-public.php on line 278