[@mattdevelop Participant 7 years, 10 months ago]

Same error here, this happens because of this code

$post_stati = $posts_query->get( 'post_status' );

		// Default to public status
		if ( empty( $post_stati ) ) {
			$post_stati[] = bbp_get_public_status_id();

in \includes\forums\functions.php on line 1800