The subject line basically says it all. I was using Logos, closed it down, and later that day when I tried to open the program I was out of luck. To my knowledge I have the latest version of Logos 6, and I am running a Mac with OS X Yosemite 10.10.5. My system did not update between the time of me closing and trying to reopen Logos. Any thoughts on how to get myself back up and running?