I'd redownload the script...Try it again. If it doesn't work, make sure you've got your Includes and SRL updated (Go to file, Download Srl, and Download Includes)...Make sure you're using the newest version of SCAR, and the newest version of the script. Obvious stuff, I know, but sometimes the obvious can be the easiest to forget.
Honestly, I just plugged it in and it worked, after fixing that stuff ^.
