For now i solved this way:
in plugins/geodir_recaptcha/includes/gdcaptcha_functions.php
about line 389 change IF
### line changed ####
if(!is_admin() && isset($_REQUEST[‘post_title’]) && isset($_REQUEST[‘listing_type’])){
#### for this ######
if(!is_admin() && isset($_REQUEST[‘post_title’]) && isset($_REQUEST[‘listing_type’])
&& !isset( $_REQUEST[‘pid’] ) && isset( $_REQUEST[‘preview’] ) && $_REQUEST[‘preview’] == $_REQUEST[‘listing_type’]
){