Hi,
Please check
this article.
How to upgrade:
* Login
* Go to "My Licenses/Downloads"
* Download the new package
* Unzip the package
* Uninstall the component and the 2 modules
* Re-install the component and 2 modules
* Install the paypal payment plugin
* Enter your paypal email on the payment tab
* Publish the modules
Important:
* Because of the database changes, it may take some users quite some time to upload the component, please be patient and let it run without interruptions.
* You will not lose any information from this upgrade!
* For any upgrade issues, please open a support ticket.
Let me know if you have any doubts.
Best regards,