You can find the answers to many questions here, it’s very likely someone before experienced the same problem as you do. Otherwise you can also submit an issue ticket and wait for our help.
The method to activate D16 Group software is as follows:
Log in to your User Area account and download the License Key File or Activation File  to some temporary location on your hard drive (e.g., desktop).
If you've already gone through the installation process, just open your host application (DAW) and load an instance of the plugin you wish to activate.
Open plugin's edit window (GUI). See your host application’s manual if you are unclear on how to do this.
Before activation, our plugins work in demo mode. Upon loading the GUI, a splash screen will be shown with an Activate button.
Click Activate button to load the key file from the location you saved it to in (step 1 e.g. desktop). That’s it! Your plugin should now be activated.
 Activation File expires in 72 hours after download. When it happens it has to be re-downloaded in order to complete activation. Once the plug-in is activated you don't have to worry about expiration, the license is activated once.
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