It's been a while since I ran this utility, but I just saw that there was an update and it ran without problems, but when I was adding the folder where the Unity editors are saved, it closed and did not open again. I was moving some versions that I had installed (C:\Program Files\Unity\Hub\Editor: [5.2.3p2, 6000.0.11f1, Unity (if I'm not mistaken, it's 5.3.3f1)] the Unity folder (version 5.3.3f1) when I removed it, it opened again without problems-