It seems this listing has either been deleted or it closed more than 75 days ago

About half the time I try and list a new item when using the list item with similar qualities feature I get "It seems this listing has either been deleted or it closed more than 75 days ago" and the existing listing gets closed. What is happening and how do I stop this.

I do this a lot but usually with one of my own listings. Have you got an example of a listing (ie the ID) which you are using to do a 'List Similar item' on? Cheers, Tony