There was a problem with Java that caused major issues with the application, but that happened back in 2014. However, I recommend you install the latest version of Java and then re-install the application. Make a clean install by deleting all the programs related to Bid Whist and Java, then re-install all the programs, restart the computer, and it should work. Additionally, use the Windows Firewall and add an exception for this application. Some apps freeze when the connection is blocked, even if you can launch it normally.
Official website: http://bidwhist.com/