Yes, I solved it as you said. Thank you. I downloaded and installed it without getting a license. I had some license problems. My Corona license was lost. I deleted and reinstalled it, etc., I solved the problem. I thought it would at least appear as an expired license on the license page. But my real mistake was trying to run it after installing vray :) It messes up the licenses. The server can't see the licenses anymore. As I said, I reinstalled it and solved the problem.