On my website the your plugin seems to not show any thumbnails at all, just a hatched image with nothing in. I have tried using the thumbnail regenerator which actually fixed issues with a different related post plugin but to no avail on this one.
I would much prefer to use your plugin as it is much simpler and easier to use and frankly looks better. I think it maybe that I need to change where the plugin gets the thumbnails from in my settings, but I am no professional with this so any help would be greatly appreciated! Currently default image url is set to - http://darkdesigngraphics.co.uk/wp-content/plugins/yet-another-related-posts-plugin/default.png
Do I need to change this to something else?