If the version of WIZVSP you are using is less than 2.0.2, you need to delete it and install it as latest version(WIZVSP_V202_R2).
You need a setup file of previous version for uninstallation.
For example> refer under figure
Click Remove WIZ VSP for confirmation, then Finish for successful uninstallation.
Attach the WIZVSP installation file for each version.
Latest Version (2020.01.20) : WIZVSP_V202_R2
To get the serial number of the latest license, visit to http://wizvsp.wiznet.io/ and register and the serial number will be sent to the e-mail.