The Dirac Live Processor Trial license is only for computer audio. If you are trying to use it with a hardware AVR, it unfortunately will not work.
It is possible though to connect the computer audio Dirac license to an AVR. Here is a help article about connecting the AVR to a computer running the Dirac Live Processor software:
How to use Dirac Live Processor with an AVR over HDMI
You can download the Dirac Live Processor software here: