Ok, I found the issue and applied a hotfix to your site, the links should resolve correctly now. This fix will be in the next update to Link so you willl be able to safely update when it is released.
Apologies for the trouble!
ps. Using the widget the way you are with widget in page shortcode plugin. I recommend using the supported shortcodes instead. I added them to the page so you can see them.
Hope that helps!