Connections gone and error in 3.5.1

Hi,
after upgrade all connections disappeared,in db they are ok,under tools it shows correctly.
In local I see this error in admin area for adding connections:
Warning: Could not find direction(s). in C:\server\huridocs\acerwc\site\wp-content\plugins\posts-to-posts\core\query-post.php on line 1

Also there is problem when I use

$args = array(
                                'post_type' => 'document',
                                'posts_per_page' => -1,
                                'orderby' => 'title',
                                'order' => 'ASC',
                                'connected_type' => 'country_to_document',
                            );

Warning: Could not find direction(s). in C:\server\huridocs\acerwc\site\wp-content\plugins\posts-to-posts\core\query-post.php on line 17

this is connection details:

p2p_register_connection_type( array(
            'name' => 'country_to_document',
            'id' => 'country_to_document',
            'from' => 'country',
            'to' => 'document',
            'reciprocal' => true
    ) );

Thanks for help.

https://www.ads-software.com/extend/plugins/posts-to-posts/