I recommend you refer to this; It's a comprehensive list of all CAMeLots available: https://www.sc4devotion.com/forums/index.php?topic=2039.0
As of the box, it means you're missing something called a "dependency"... It means that you need to download something else to make the box disappear.
It may be this: https://www.sc4devotion.com/csxlex/lex_filedesc.php?lotGET=711
And I also advise you read the documentation, because it'll typically have the links for what you need to download as a dependency.
Thank you very much!!! :-)
