The problem of activation is not solved

I'm trying to activate the free DriftSignt license for more than a year now.
All that I see after entering the activation data is the main program window for 2 seconds. I know the computer well. I like and you are looking for and tried many solutions from the forums. These solutions do not work. I despaired and stop trying. You see how many similar messages in this forum. It is obvious to me that Dissalt Systems Company is not interested in solving this problem, but it is interested in declaring the availability of a free product.