In PM Admin | General Settings | Reinitialization the following error may be displayed
Before selecting a custom certificate for the computer running the Self-Service site, you must install a custom certificate on the computer running the Password Manager Service. For more information, refer to the Administrator Guide
A wrong certificate is written in Local.Storage file.
The old certificate is no longer on the machine, so QPM Service cannot correctly start its WCF listeners.
The certificate listed in Local.Storage file is not valid (it would be selected on User Interface otherwise).
1. Stop the Password manager service.
2. Delete the certificate ID from thumbprint in
C:\ProgramData\Dell\Password Manager\Local.Storage file.
Search for "<setting name="certificateThumbprint" value="<XXXX>" />"
3. Restart the PasswordManager Service.