it seems that I have the same problem.
Yesterday I downloaded the newest version and installed it on two Macs.
One of them is a MacPro5.1 with Yosemite (10.10.5) and everything is
working as intended. The other one is a Macbook Pro 2011. Again it
is working with Yosemite but SmartScan and DeepScan start without
scanning any file.
The Log-File shows Error  meaning that Cyber Security Pro has not
been able to do the scan.
What can I do that my harddrives are beeing scanned?