The same problem here, but on Mountain Lion 10.8.5!
I have just
clean reinstalled the OS, installed Pro Tools 10.3.8 and then eucon driver and it crashes on launch.
I tried these eucon versions without success: 3.1.2, 3.1, 3.0.1, 3.0.
Before reinstall, ML 10.8.5, PT 10.3.5 and eucon 3.0.1 worked like a charm.
Any suggestions?