I'm having the same problem with Fedora 20.
Is this what it is looking for on my client?
-rwxr-xr-x. 1 root root 2373 Apr 3 2014 /usr/bin/x2golistsessions
I set it up in CentOS 6 and just logged in from Fedora 20, but fails on another server that I don't control of at school. It worked, then not. Humm..... :)
Tim...