Error caused by Automate

(There is no category for issues with The Hub?)

I'm getting the following fatal errors quite a lot, ever since I enabled Automate on lots of my sites.

PHP ERROR: Call to a member function get_error_codes() on string FILE: /www/wp-admin/includes/class-wp-ajax-upgrader-skin.php LINE: 102

Can you please let me know how to prevent these errors?