Elementor 3.6.2 Compability

After updating to the latest version of Elementor and Elementor Pro I am now having issues editing Elementor pages. When I view Chromes Network tab there is an entry for admin-ajax.php which has server error 500.

This is a preview of the error:

Fatal error: Uncaught Error: Class 'Elementor\Scheme_Color' not found
in /nas/content/live/renaissancebat/wp-content/plugins/ele-term-list/widgets/term-list.php on line 664

Call stack:

Ele_Term_List_Widget::image_register_style_controls()
wp-content/plugins/ele-term-list/widgets/term-list.php:136
Ele_Term_List_Widget::_register_controls()
wp-content/plugins/elementor/includes/base/controls-stack.php:2280
Elementor\Controls_Stack::init_controls()
wp-content/plugins/elementor/includes/base/controls-stack.php:494
Elementor\Controls_Stack::get_stack()
wp-content/plugins/elementor/includes/base/widget-base.php:177
Elementor\Widget_Base::get_stack()
wp-content/plugins/elementor/includes/managers/widgets.php:336
Elementor\Widgets_Manager::ajax_get_widget_types_controls_config()
call_user_func()
wp-content/plugins/elementor/core/common/modules/ajax/module.php:171
Elementor\C\C\M\A\Module::handle_ajax_request()
wp-includes/class-wp-hook.php:307
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:331
WP_Hook::do_action()
wp-includes/plugin.php:474
do_action()
wp-admin/admin-ajax.php:187

It looks like this plugin is usign the deprecated code to register the controls. Please see https://developers.elementor.com/docs/managers/registering-controls/ for more information.

In the mean time I will downgrade Elementor to carry on working.

Steve