New User! Falcon 1.6 Installtion Problem!

Dear Team/ Senior’s
I’m new user of Falcon. I activate Falcon On Miracle Key but when i download Falcon Key Edition 1.6 on Shall 1st time. After successfuly download when i install setup Miracle Key Edition 1.6 he always give error Your Installtion is damge/crrupt. I also download again and again and try on Win7, Win8, Win10 but same problem. i change already 3 pc but no sultion. plz give me any idea/ any sultion. I also download setup 1.8 but not proper work.