Unable to connect to server

[fis]

I and my uncle have been unable to sign into the server yesterday and today.

[21:23:50]   Attempting to connect to server...
[21:23:57]   You were unable to connect to the game matching server through its WANIP. Trying LANIP....
[21:24:03]   You were unable to connect to the game matching server. Check lackeyccg.com/downloads.html to see if you have the latest version of LackeyCCG.
[21:24:03]   There was an error connecting to the server. Shucks.

I downloaded lackeyCCG this month and the website lackeyccg.com/downloads.html says it has been updated in 2014.
What should I do?