Not working

I purchased this app and downloaded onto my iMac (OS X Yosemite 10.10.4) but it doesn’t work. I double clicked on it and it doesn’t open/start. The “support” is non existent (there are no answers to any kind of technical issues). There is an email at the bottom of the “support” page that I used to email the developer about this problem, but no answer yet. Poor customer service. Upsetting.

Aztecgoddess* about Candlelight, v1.3