missing

Hi there, I have noted that Rich Snippets Testing tool show a new error about "Missing URL". You can check it here: https://search.google.com/test/rich-results/result?id=x-WdPtiiTAGOxbizbG0SKw I have found the same error also on my installation. How this can be fixed?

I just purchased and installed UIX-Dark and have missing icons. This is across all pages of my forums. http://www.melonmc.net/community The theme is currently set a child of the UIX theme. Any help would be appreciated :)