ALIEN RPG Dice Macro Not Working

I've tried repeatedly to build or copy macros to generate the specific dice rolls for this game, with zero success.  I've tried adding this one:  !alienr [?{Roll Title|Roll Title}] [[?{Base Dice|0|1|2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|17|18|19|20}d6]] [[?{Stress Dice|0|1|2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|17|18|19|20}d6]] --runas|?{Character Name|Character Name} --|?{Additional Text|Additional Text} as a macro,  however, it does not *work*. The boxes come up to add titles, the number of dice to roll, etc, but when I finish filling them out, no dice are rolled. Nothing happens.   Can someone please explain Step-by-Step what I need to do to get this to work? It's incredibly frustrating. 

Hi Casey J.,  This appears to be an API issue, not a Macro issue. Please verify that the API Sandbox is functioning and that you have installed the API Script you are using.  You can do that by going to the API Sandbox by going to Roll20.net, click the name of your game, click Settings, click Mods.  Make sure the Alien script (I don't know its name) is installed. If it is not then you can look in the dropdown menu.  If it is loaded then perhaps the sandbox is not running, you can hit Restart to get it up and running. 

Thank you, that worked. Truly, you are a Champion of the Forum.