An error of type E_ERROR

Hi, since the last few days (after wp upgrade I Think) we get a lot of these errors when adding property to our website and also autopost to facebook with the app.

E:\NelsEstates\property\wp-content\plugins\accesspress-facebook-auto-post\inc\cores\auto-post.php. Error message: Uncaught Error: Call to a member function getBody() on boolean in E:\NelsEstates\property\wp-content\plugins\accesspress-facebook-auto-post\inc\cores\auto-post.php:314
Stack trace:
#0 E:\NelsEstates\property\wp-content\plugins\accesspress-facebook-auto-post\accesspress-facebook-auto-post.php(503): include()
#1 E:\NelsEstates\property\wp-includes\class-wp-hook.php(286): AFAP_Class->auto_post(‘publish’, ‘draft’, Object(WP_Post))
#2 E:\NelsEstates\property\wp-includes\class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)
#3 E:\NelsEstates\property\wp-includes\plugin.php(465): WP_Hook->do_action(Array)
#4 E:\NelsEstates\property\wp-includes\post.php(4446): do_action(‘transition_post…’, ‘publish’, ‘draft’, Object(WP_Post))
#5 E:\NelsEstates\property\wp-includes\post.php(3852): wp_transition_post_status(‘publish’, ‘draft’, Object(WP_Post))
#6 E:\NelsEstates\property\wp-includes\post.php(4028): wp_insert_post(Array, false)
#7 E:\NelsEstates\property\wp-admin\includes\post.php(405): wp_update_post(Array)
#8 E
I have updated the theme to its latest version as well as all the plugins etc. but the problem persist.

Any ideas

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