Board Thread:Support Requests - Getting Technical/@comment-26512928-20170621180704/@comment-24055022-20170621194628

Yes, that is exactly what the problem is. If you're copying and pasting the example usage in that link of yours, it has  {{Infoboxes  when it needs to be the title of the infobox page itself, which in this case is  {{ CGX character infobox. I hope that helps!