Error message on hitting 'update' on front end

Hi, just testing this out. It seems cool as setting up ACF front end forms doesn’t appear to be super straightforward (especially if you want to do it quick!)

I just tried it on a post on which I have 2 google map ACF fields, I changed one of the fields on the front end then hit ‘update’ and I got this error message (although the field did update in the backend):

Warning: call_user_func() expects parameter 1 to be a valid callback, function ‘fa_realize_form_actions’ not found or invalid function name in path\to\my\install\wp-content\plugins\acf-frontend-display\inc\afd_acf_extend_api.php on line 115

Warning: Cannot modify header information – headers already sent by (output started at path\to\my\install\wp-includes\class.wp-scripts.php:159) in path\to\my\install\wp-includes\pluggable.php on line 1178

https://wordpress.org/plugins/acf-frontend-display/