Hi...
Do make sure your computer is fully updated by running Windows Update. You should also check on the Nvidia website that you have the latest graphics drivers installed.
Once you have confirmed that your computer is fully updated, do try again with Cartoon Animator. However, as your computer is quite underpowered, it is advised to keep your projects small and limit the number of characters in a scene as larger projects are more likely to cause stability issues.
If you do find that the problem remains, please feel free to contact our Support department using the link below. They will try to help you further.
https://www.reallusion.com/CustomerSupport/UserEx/QForm.html
Peter
Forum Administrator
www.reallusion.com