If you receive a message like this that starts off with "Unhandled exception", please take the following steps:
The error description in the second paragraph (in the above example it's "Index was outside the bounds of the array")
What was the very last thing you clicked before you got the error?
2. Click Quit. Do NOT click Continue, do NOT X out of it.
This will close the QCS program and you will have to log in again. If you don’t click Quit, it may look like the program is working normally, but it is NOT, it will not save your data properly and WILL lead to more serious problems.