This error is displayed when launching DbVisualizer 5.0 using an invalid license key file. The problem happen when using a license key file that is for an older version such as 3.x or 4.x.
- Either renew your license for DbVisualizer Pro,
- or register for an evaluation license for the latest version,
- or make sure you are running a version of DbVisualizer that is compatible with the license you have.