'Can't Start the web server' Error Message When Starting Duplicacy

Hi all,

I’m getting the following error message when starting Duplicacy. Can anyone help with this?

I am running on a freshly installed Windows 10 1903 Hyper-V VM

To add I did have Duplicacy running in a test environment which is no longer being used.

Either Duplicacy is already running, or you have another program that listening on the same 3875 port.

Do you see the other Duplicacy instance in Task Manager?

Thank you so much, it seems duplicacy was starting itself.