Hello my name is Thom. Have you tried rebooting your computer?
That sounds frustrating. I bet there is a log file where you might be able to see if there is an error message? I assume that you are using the binary version and not building from source. Before you try it, there most likely isn’t a need to delete and download the whole thing again over and over again that’s not going to help unless you were on a 2400 bps on a noisy line! Then imagine the frustration lol.
Your likely having a version conflict with dependencies or missing paths if I were to guess, but those are things that the logfile may explain in more detail of where to look.
Good luck!
HTH