[Plugin: Gravity Forms Directory] Fatal error: Call to private method GFCommon::is_post_field()

installed the plugin, setup the page to show the directory, but i keep getting this error message;

Fatal error: Call to private method GFCommon::is_post_field() from context ‘GFDirectory’ in /misc/23/397/951/455/0/user/web/cre8tiveshock.com/wp-content/plugins/gravity-forms-addons/gravity-forms-addons.php on line 1294

please see link; https://cre8tiveshock.com/forms-filled-in

can anyone help pls, thanks

https://www.ads-software.com/extend/plugins/gravity-forms-addons/