If you are unable to start the product (the interface keeps closing when you try to open it), you might use a corrupted version of the application, or you might encounter an internal error. In any case, the solution for this problem is to head over to the developer's official website and download the product there. The latest version of the application should have this error fixed, so it's advised to use that. By using the official website for download you are making sure that the version you are using isn't corrupted. You should be able to download and install the product without any difficulties.