Fatal error: Uncaught Error: Class 'YITH_Licence' not found in /home/rafiei/public_html/wp-content/plugins/yith-woocommerce-product-bundles-premium/plugin-upgrade/lib/yit-theme-licence.php:27 Stack trace: #0 /home/rafiei/public_html/wp-content/plugins/yith-woocommerce-product-bundles-premium/plugin-fw/yit-functions.php(1557): include_once() #1 /home/rafiei/public_html/wp-content/plugins/yith-woocommerce-product-bundles-premium/plugin-fw/includes/class-yit-plugin-licence.php(54): yith_plugin_fw_load_update_and_licence_files() #2 /home/rafiei/public_html/wp-content/plugins/yith-woocommerce-product-bundles-premium/includes/class.yith-wcpb-premium.php(44): YIT_Plugin_Licence->register('yith-woocommerc...', 'qhNNwsl95FnqhNI...', 'yith-woocommerc...') #3 /home/rafiei/public_html/wp-includes/class-wp-hook.php(324): YITH_WCPB_Premium->register_plugin_for_activation('') #4 /home/rafiei/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(1, Array) #5 /home/rafiei/public_html/wp-includes/plugin.php(517): WP_Hook-> in /home/rafiei/public_html/wp-content/plugins/yith-woocommerce-product-bundles-premium/plugin-upgrade/lib/yit-theme-licence.php on line 27