You are activating a standalone (also known as trial or node locked) license but are receiving the error message -153 Rehostable hostid exists.
Solution
This error usually means your local license files are in a corrupt state.
Delete the folder C:\ProgramData\Reprise and try again.
If the issue persist, zip the entire C:\ProgramData\Reprise folder and send it to support to assist discover.support@dataminesoftware.com
