Fatal error: Uncaught Error: Call to a member function get() on null in /home/umrengin/public_html/wp-content/plugins/woocommerce-australia-post-extension-pro/core/class-separated-fees.php:531 Stack trace: #0 /home/umrengin/public_html/wp-content/plugins/woocommerce-australia-post-extension-pro/core/class-separated-fees.php(61): AustraliaPost\Core\Separated_Fees->get_shipping_method_settings() #1 /home/umrengin/public_html/wp-content/plugins/woocommerce-australia-post-extension-pro/core/class-separated-fees.php(49): AustraliaPost\Core\Separated_Fees->__construct() #2 /home/umrengin/public_html/wp-content/plugins/woocommerce-australia-post-extension-pro/core/class-bootstrap.php(115): AustraliaPost\Core\Separated_Fees::get_instance() #3 /home/umrengin/public_html/wp-includes/class-wp-hook.php(287): AustraliaPost\Core\Bootstrap->initiate_features('') #4 /home/umrengin/public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #5 /home/umrengin/public_html/wp-includes/plugin.php(484): WP_Hook->do_acti in /home/umrengin/public_html/wp-content/plugins/woocommerce-australia-post-extension-pro/core/class-separated-fees.php on line 531