break the editor

Once set, during the work of editing a page or a post, it generates ‘PHP Fatal Error’.

Got error 'PHP message: PHP Fatal error:? Uncaught Error: Call to a member function get_cart() on null in /apps/wordpress/wp-content/plugins/tiktok-for-business/pixel/Tt4b_Pixel_Class.php:220\nStack trace:\n#0 /apps/wordpress/wp-includes/class-wp-hook.php(324): Tt4b_Pixel_Class::inject_initiate_checkout_event()\n#1 /apps/wordpress/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()\n#2 /apps/wordpress/wp-includes/plugin.php(517): WP_Hook->do_action()\n#3 /apps/wordpress/wp-content/plugins/woocommerce/src/Blocks/BlockTypes/Checkout.php(375): do_action()\n#4 /apps/wordpress/wp-content/plugins/woocommerce/src/Blocks/BlockTypes/AbstractBlock.php(109): Automattic\\WooCommerce\\Blocks\\BlockTypes\\Checkout->enqueue_data()\n#5 /apps/wordpress/wp-includes/class-wp-hook.php(324): Automattic\\WooCommerce\\Blocks\\BlockTypes\\AbstractBlock->enqueue_editor_assets()\n#6 /apps/wordpress/...', referer: [websiteurl]/wp-admin/edit.php?post_type=page