Thanks for the help! It looks like the permission issue is fixed. However, the LXDE menu entry does not seem to be working.
If I type spiderfix; SpiderOak in a terminal, the file is copied and SpiderOak launches. However, if I select SpiderOak from the menu, nothing happens. Is there something wrong with my .desktop file? See the file contents below. Thanks.
Comment=SpiderOak Secure Backup and File Sharing Client