Error Code -1407

Mac 2.0 issues Error Code -1407 get this any time I try to load a file to my server via SFTP. This started after I tried to load a 3.4MB file which took over 20 minutes and then stopped working. Now when I eject the server in Finder it disappears but ExpandDrive still thinks its loaded. Also makes Finder unstable and slow to respond when I'm browsing directories outside of my server. Only Quitting ExpandDrive do my issues go away. 2.0 is really a beta release in my opinion.