I had Codebook installed on my 2014 MacBook Pro and it was working fine and syncing with my iPhone 6 without problems for about a week. This morning the app crashed on my Mac and simply refused to run. It shows that it is running in the taskbar, but there is no way to access it. I tried uninstalling it, rebooting and then reinstalling it to no avail. Nothing I do seems to help and the program simply will not run on my Mac now. Any suggestions?