hi, i have some products in my shop which are amazon affiliate, so i would love to open the “BUY” button link with a _blank target when leads away from my website.
i found a snippet to do the job and you can take a look to it here,
https://www.tychesoftwares.com/how-to-make-woocommerce-external-product-links-open-in-a-new-tab/

and it worked like a charm till last EFOR THEME UPGRADE.

i should add this to the function.php file inside the theme… but something goes wrong now, and if i add it i can’t anymore browse the courses LSM page and get this error

Fatal error: Uncaught Error: Call to a member function is_type() on null in /home/mhd-01/www.queencoach.it/htdocs/wp-content/themes/efor/functions.php:15 Stack trace: #0 /home/mhd-01/www.queencoach.it/htdocs/wp-includes/class-wp-hook.php(309): ts_external_add_product_link(‘apply_filters(‘<a href=”?add-t…’, Array) #2 /home/mhd-01/www.queencoach.it/htdocs/wp-content/plugins/tutor/templates/loop/add-to-cart-woocommerce.php(65): apply_filters(‘woocommerce_loo…’, ‘<a href=”?add-t…’, Object(WC_Product_Simple), Array) #3 /home/mhd-01/www.queencoach.it/htdocs/wp-content/plugins/tutor/includes/tutor-template-functions.php(115): include(‘/home/mhd-01/ww…’) #4 /home/mhd-01/www.queencoach.it/htdocs/wp-content/plugins/tutor/includes/tutor-template-functions.php(549): tutor_load_template(‘loop.add-to-car…’) #5 /home/mhd-01/www.queencoach.it/htdocs/wp-content/plugins/tutor/templates/loop/course-price-w in/home/mhd-01/www.queencoach.it/htdocs/wp-content/themes/efor/functions.phpon line15

i have to solve this problem: woo commerce works fine, and the affiliate link open in a new tab and send no error back, but on the courses page as long as i publish courses that i sell with woo commerce integration.. i get this error. No error for free courses :)