How to clear the data of Dux-Soup?

To clear the data, you need to go to https://www.linkedin.com/mynetwork/invite-connect/connections/ and click on the Dux-Soup icon and click on "Clear Data":

Please note that once cleared, it cannot be retrieved. 

It will not affect the visit history so if you set Dux-Soup to skip already visited profiles, these will be skipped.