Critical Errors

Hi,

My site was working fine yesterday… and to my knowledge, nothing has changed today, however I’m experiencing an issue when using the ‘Add Order’ button on the orders page in wp-admin.
I’m getting the WordPress White Screen Of Death. I’ve examined with Query Monitor and the error that is being reported is:

2020-06-16T18:46:00+00:00 CRITICAL Uncaught TypeError: Argument 2 passed to Elementor\TemplateLibrary\Source_Local::on_save_post() must be an instance of WP_Post, null given, called in /home/snoutwoodorders/public_html/wp-includes/class-wp-hook.php on line 289 and defined in /home/snoutwoodorders/public_html/wp-content/plugins/elementor/includes/template-library/sources/local.php:1081
Stack trace:
#0 /home/snoutwoodorders/public_html/wp-includes/class-wp-hook.php(289): Elementor\TemplateLibrary\Source_Local->on_save_post(5805, NULL)
#1 /home/snoutwoodorders/public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array)
#2 /home/snoutwoodorders/public_html/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#3 /home/snoutwoodorders/public_html/wp-includes/post.php(4153): do_action('save_post', 5805, NULL, false)
#4 /home/snoutwoodorders/public_html/wp-admin/includes/post.php(674): wp_insert_post(Array)
#5 /home/snoutwoodorders/public_html/wp-admin/post-new.php(66): get_default_post_to_edit('shop_order', true)
#6 {main}
  in /home/snoutwoodorders/public_html/wp-content/plugins/elementor/includes/template-library/sources/local.php on line 1081

Does anyone know how I could resolve?
Thanks