Squeaker

Or, there is this wording in the Help system ...
 
Occasionally, if you have a crash of your computer, it will leave CMH in a state where it can't run anymore.
 
To recover from this, you need to do one of two things.  Either:
 
a.  Run CMH from a command prompt with the reset-state option
 
 DOS>  cmh.exe reset-state
 
 OSX>  ./cmh.app reset-state
 
or
 
b. Delete CMH's AppState.txt file
 
At the top of the log window (Options->Show Log Window) CMH tells you where the log file is stored - the AppState.txt file is in the same place.   If you can't access the log file, you will need to search your disk for AppState.txt.
 
Under Windows it is usually in a place like:  
 
C:\Users\username\AppData\Roaming\GreenAsJade\CMHelper\
 
Under OSX it is usually in a place like:  
 
/Users/username/Library/Application Support/GreenAsJade/CMHelper/