User blog comment:Otakon7/Otakon7's Buddyfight Simulator/@comment-24548780-20140627054456/@comment-2234004-20140627083155

It's not the program, it's the server (which is free, so they shut it down).

And yeah, the 2nd server goes offline here and there, but sadly, out of free servers, only these 2 work "properly".