Hey, It seems WooCommerce plugin is not active on your wp-admin. Enhanced ecommerce plugin can only be activated if you have active WooCommerce plugin in your wp-admin.
Fatal error: Uncaught Error: Call to a member function add_inline_js() on null in /home/modistse/public_html/wp-content/plugins/enhanced-e-commerce-for-woocommerce-store/public/class-enhanced-ecommerce-google-analytics-public.php:303
Stack trace:
#0 /home/modistse/public_html/wp-content/plugins/enhanced-e-commerce-for-woocommerce-store/public/class-enhanced-ecommerce-google-analytics-public.php(247): Enhanced_Ecommerce_Google_Analytics_Public->wc_version_compare('tvc_smd={"tvc_w...')
#1 /home/modistse/public_html/wp-includes/class-wp-hook.php(308): Enhanced_Ecommerce_Google_Analytics_Public->tvc_store_meta_data('')
#2 /home/modistse/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#3 /home/modistse/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#4 /home/modistse/public_html/wp-includes/general-template.php(3059): do_action('wp_footer')
#5 /home/modistse/public_html/wp-content/themes/storefront/footer.php(37): wp_footer()
#6 /home/modistse/public_html/wp-includes/templ in /home/modistse/public_html/wp-content/plugins/enhanced-e-commerce-for-woocommerce-store/public/class-enhanced-ecommerce-google-analytics-public.php on line 303