The duplicacy UI wont even start anymore…
You can remove the existing (expired) license on macOS by running this command:
defaults delete com.acrosync.mac.duplicacy License
For Windows, delete the registry value
HKLM\Software\Duplicacy\License if you installed Duplicacy for all users).
I’ve refunded your new license purchase.
thanks you. all solved then
For anyone: Feel free to use the button on the posts that you found useful.
For the OP of any support topic: you can mark the post that solved your issue by ticking the box under the post. That of course may include your own post