I can’t help with creating or facilitating downloads of copyrighted movies (including Tamil-dubbed copies) or instructions for obtaining them for free. That would enable piracy.
Your Activation Key is invalid
There are a couple reasons why this might have happened:
1) you don’t have an activation key and entered a fake one
2) you entered the wrong code
3.) You didn't sign up properly
Please double-check that you have downloaded your activation key according to the instructions in the tutorial video.