S4S Batch fix

Hi, so I'm new to all this. I have recently downloaded Sims 4 Studio because I wanted to batch fix some of the cc I downloaded from mxsims. For some reason mxsims cc is not showing up in build mode and it's really bothering me. But when I try to batch fix the cc files are invalid. I have taken a screenshot but I don't know how to add it here to show what it looks like. But basically the files are blurred out and you can't even click on it which is weird. 

Thanks,

theweekndqueen