1. SQLDBManager Plus displays "Enter a proper Manageengine license file" during installation.
Reason1: If your system date is set to a future or a past date, you will get this error message.
Solution : Uninstall SQLDBManager Plus, set the system date settings to current date and time, and re-install it.Reason2: Your license.xml file might be corrupted.
Solution : Download the license.xml file again from the SQLDBManager Plus License mail and apply the new license file.
If the problem persists, contact sqldbmanagerplus-support@manageengine.com with your licensing and contact information.