You need Microsoft Core XML Services to restore functionality of the software. Luckily, for you, this is a very easy process and it can be done by downloading an installation package. Access the page below, save the package, install it and then restart CorelDRAW and it should work. If by any means Corel shows other errors, go to Start > Control Panel > Uninstall a Program > Corel and choose Repair instead of Uninstall.
Microsoft Core XML Services download page: https://www.microsoft.com/en-us/download/details.aspx?id=3988