The layout file is good for nothing in this context, and you have no .rpt file, because there is none. That file is generated on an application crash, not when an exception is thrown.
Usually, an exception comes with a detailled error message including a description, location, and other information. With "an exception" as the only information, it is impossible to tell what's wrong, sorry.
You may want to make sure that you don't use any old plugins and that the resources for both the application and all enabled plugins are up-to-date, and finally, you may want to try and remove the configuration file. You may also want to try and run Code::Blocks from a commandline. In case an error message cannot be shown as a dialog box, it is sent to the commandline.