I have the same problem....WTF is going on with this? Looks like the error is in dbmodels.php at line 366 from my error log. [Wed Nov 01 16:53:44.887226 2017] [:error] [pid 17699] [client 166.181.86.221:49140] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') /* From [accurateassessor.com/wp-admin/admin-ajax.php?location=10&next=service' at line 1 for query SELECT * FROM wp_ea_services WHERE id IN () /* From [accurateassessor.com/wp-admin/admin-ajax.php?location=10&next=service&action=ea_next_step&check=1d87bcf8ac] in [/nas/content/live/accurateweb1/wp-content/plugins/easy-appointments/src/dbmodels.php:366] */ made by do_action('wp_ajax_nopriv_ea_next_step'), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, EAAjax->ajax_front_end, EADBModels->get_next, referer: http://accurateassessor.com/appointments/