I´m having problems with S2member plugin. It worked perfectly fine until probably the last Wordpress update. Besides this there haven´t been any updates to the site. Right now on the page where there were Stripe Pro forms it shows this error:
Catchable fatal error: Object of class WP_Post could not be converted to string in /home/newsinsl/public_html/wp-content/plugins/s2member/src/includes/classes/utils-strings.inc.php on line 235