Linkwithin linking to deleted posts

Hi,

On my client’s blog, https://www.26mertonroadcreative.com/ I’m trying to use LinkWithin. It isn’t linking to any posts except for the default “Hello World” post which I have already placed in the trash and permanently deleted. When you click on the link that it displays to the “Hello World” post, you get a 404.

I’ve tried reinstalling the plugin numerous times, with a fresh download from LinkWithin each time. Any suggestions on how to get this cool little plugin to work? Or suggestions for a better plugin that does the same function?

Any help is much appreciated. Thanks!