There seems to be a slight problem in the interaction between the current Sneakypeek builds (97823) and the excellent
Script Debugger 4.
Until the problem is resolved, you should probably avoid running code like the following from Script Debugger:
Code:
tell application "OmniFocus"
document of window 1
end tell
This is currently tripping the CrashCatcher (only if run from Script Debugger - the same code runs without a problem in Script Editor).