Hi,
the log descibes problems in org.tritonus.share.sampled.file.TAudioFileReader
These are problems with the ambient sound. It might be, that this was the first time you used an airport with ambient sounds or you switched them on, or the native libs on your Mac have changed ....
You should switch off the ambient sound. This could be done in Settings->Performance if HELI-X was running ...

Thus, delete the file files/Application/ApplicationSettings.xml
After that, the ambient sound is switched off.
Michael