Comments are not saving on questions and answers

Hello Stephen !
Please send me your site for further checking about comment issue. And  right now we already have the option for anonymous answer and comment. It is in the admin > Q&A > Settings > Permission of the plugin.
If you mean anonymous question, then unfortunately we do not support it yet. Will soon discuss and have it in later versions of the plugin
Cheers

Reinstall the plugin.

I experienced the same problem, even after reinstalling the plugin.
I found that if I modify dwqa_comment_action_add in actions.php with the following it works (I’ve made the line I added bold):

function dwqa_comment_action_add(){
global $current_user;

if( ! dwqa_current_user_can(‘post_comment’) ) {
wp_send_json_error( array(
‘message’ => __( ‘You can\’t post comment’,’dwqa’ )
) );
}
$args = array(
‘comment_post_ID’ => $_POST[‘comment_post_ID’],
‘comment_content’ => $_POST[‘content’],
‘comment_parent’ => $_POST[‘comment_parent’]
);
if( is_user_logged_in() ) {
$args[‘user_id’] = $current_user->ID;
$args[‘comment_author’] = $current_user->display_name;
} else {
if( !isset($_POST[’email’]) || !$_POST[’email’] ) {
wp_send_json_error( array(
‘message’ => __(‘Missing email infomation’,’dwqa’)
) );
}
if( !isset($_POST[‘name’]) || !$_POST[‘name’] ) {
wp_send_json_error( array(
‘message’ => __(‘Missing name infomation’,’dwqa’)
) );
}
$args[‘comment_author’] = isset($_POST[‘name’]) ? $_POST[‘name’] : ‘anonymous’;
$args[‘comment_author_email’] = $_POST[’email’];
$args[‘comment_author_url’] = isset($_POST[‘url’]) ? $_POST[‘url’] : ”;
$args[‘user_id’] = -1;
}

$comment_id = wp_insert_comment( $args );
do_action( ‘dwqa_add_comment’, $comment_id );
global $comment;
$comment = get_comment( $comment_id );
ob_start();
$args = array(‘walker’ => null, ‘max_depth’ => ”, ‘style’ => ‘ol’, ‘callback’ => null, ‘end-callback’ => null, ‘type’ => ‘all’,
‘page’ => ”, ‘per_page’ => ”, ‘avatar_size’ => 32, ‘reverse_top_level’ => null, ‘reverse_children’ => ”);
dwqa_question_comment_callback( $comment, $args, 0 );
echo ‘</li>’;
$comment_html = ob_get_contents();
ob_end_clean();
wp_send_json_success( array(
‘html’ => $comment_html
) );
}

@Rian !
Thank for your solutions in our DW Q&A plugin.