what access point are you using to start the Wizard?
Are you using an Application or design Preset? If so which one?
Do you have a Database connection defined and tested before starting the wizard?
Are you using your own database table, or one of the tables created by the wizard?
Does the crash happen while configuring the wizard or after finishing it during page creation?
The more details you can provide on the steps you are taking within the wizard before the crash occurs, the better the chance i can reproduce the problem and possibly determine the cause.