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Hey. I hope you can help me. I want to buy the Product Add. But I have installed the free version on my website but I get the following error. Can you help me solve it?
Fatal error: Uncaught Error: Call to undefined method YITH_WCCL::get_instance() in C:\xampp\htdocs\Localsite.com\wp-content\plugins\yith-woocommerce-product-add-ons\includes\classes\class.yith-wccl.php:463 Stack trace: #0 C:\xampp\htdocs\Localsite.com\wp-content\plugins\yith-woocommerce-product-add-ons\init.php(100): YITH_WCCL() #1 C:\xampp\htdocs\Localsite.com\wp-includes\class-wp-hook.php(303): yith_wapo_init(”)C:\xampp\htdocs\Localsite.com\wp-includes\class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array) #3 C:\xampp\htdocs\Localsite.com\wp-includes\plugin.php(470): WP_Hook->do_action(Array)#4 C:\xampp\htdocs\Localsite.com\wp-settings.php(441): do_action(‘plugins_loaded’) #5 C:\xampp\htdocs\Localsite.com\wp-config.php(90): require_once(‘C:\\xampp\\htdocs…’)#6 C:\xampp\htdocs\Localsite.com\wp-load.php(50): require_once(‘C:\\xampp\\htdocs…’) #7 C:\xampp\htdocs\Localsite.com\wp-admin\admin.php(34): require_once(‘C:\\xampp\\htdocs…’)#8 C:\xampp\htdocs\Localsite.com\wp-admin\plugins.php(10): ( in C:\xampp\htdocs\Localsite.com\wp-content\plugins\yith-woocommerce-product-add-ons\includes\classes\class.yith-wccl.php on line 463