Just as the installer progress bar finishes, there is a java error, and this is what it gives me for the details:

java.lang.IllegalArgumentException:
at com.zerog.lax.LAX.launch(Compiled Code)
at com.zerog.lax.LAX.main([DashoPro-V1.2-120198])
at com.apple.mrj.JManager.JMStaticMethodDispatcher.ru n(JMAWTContextImpl.java)
at java.lang.Thread.run(Thread.java)

After that, some unfinished installer files end up in my trash. Does anyone know what the problem is?