Error 38 in Corel VideoStudio after upgrading to SP1

I am trying to create a video using Corel VideoStudio but it keeps stopping. Then I decided to try restarting the application after saving the project. Immediately a message popped up stating “SP1 is available for download” and I did it. Now I am receiving the following error message: “Error: 38 – Corel VideoStudio files have been damaged or modified. Please reinstall your original source”. Am I having the issue because of installing SP1? How can I solve it?
