Reports are empty at Dashboard

One little strange thing after new year. From January 1, 2017, all graphics charts on dashboard show 0 orders and 0 new customers.
Server time shows correct time and there are new orders as you see on screenshot bellow.

https://www.cycleheart.com/charts.png

There's a thread about it over here: https://www.nopcommerce.com/boards/t/45607/380-admin-dashboard-charts-orders-and-new-customers-showing-flat-line-since-2017.aspx

Thank you I did not see this post.