Hello Dave,
Enterprise 6.3 2012-03-13 is very old and this product is no longer supported by us. Please upgrade to Standard ERP which you can download from www.standardinstall.com.
Regarding the crash you can add a file parameters.txt with text --verbosity=debug and restart the server. This will give more information in the log about what is happening.
Please contact our local partners if more help is needed, it is possible that they can still provide support for older versions. You can find their contact information here:
http://www.hansaworld.com/en/partners/uk
Best Regards,
HansaWorld