Please take a look at this forum post wiht a similar question!
The Lego Mindstorms LabVIEW Module is not officially supported on El Capitan, but the forum post includes a link to a semi-tested version that may be useful for you. Otherwise, you will need to find a physical copy of LabVIEW for Education 2014 for OSX. Unfortunately, there is no online download for LabVIEW for Education for OSX. Once you've found a 2014 edition, you can use the following link for the LVLM:
I hope this helps!
Derek B. (esoDerek)
Product Marketing Engineer