What's the specific error message you're receiving? Could you post a screenshot?
I have something similar. There is no error message.
The lines are drawn from the art board on the left to the target artboard (bottom right).
When I preview by pressing play icon in top right, the rest of the prototype loads fine.
On this page when I mouseover the marketplace link- it shows there is a link.
It's just when I click this link 'Marketplace' or image next to it (the check), nothing happens.
I have double checked that there are no layers in front, and have removed and recreated the links numerous times.
Can't work out what is causing it.
Can you please send us a link to your XD file? We'd love to take a look at it and see if we can triage. You can private message me or Peter a link if you don't want the link posted to the rest of the world. (Also note that it's the Thanksgiving holiday this week, so we'll be out the rest of the week and will get back to you on Monday.)