We have a functional release of N-Body out, and we are going to do further testing to see if we can fix some of the issues you are still having.
Version 1.06 is on its way in response to the different problems that are happening.
For now, we are going to change the run that is currently up to do something slightly different. If you have not updated, you will error immediately. We have changed the minimum version requirements. This will help us see what is wrong specifically with the current release.
Also, please use Jeff Thompson's thread about errors.