Suitcase Fusion Client encountered an unexpected error. 83914764
Google lead me to a forum thread that discussed the issue, but I wasn’t too interested in accepting the thread’s “reinstall the program” advice so quickly.
After a bit of playing, I found a solution that was a lot more painless. No guarantees it will work for you, but it’s worth a shot!
Simply open your Suitcase Fusion 3 preferences (⌘+comma), navigate to the Type Core tab, and click the Stop FMCore… button. That will kill FMCore (the process that handles type activation when Suitcase Fusion is closed) and Suitcase Fusion itself. Then just open Suitcase Fusion again to restart FMCore.
If your setup is anything like mine, you’ll be back in business, error-free!