Ground control file will not open

I have downloaded the ground control on my computer and it will open a few times when I connect it and move the router. Then I go to launch ground control another time and it will not open. Will flash like it wants to and not. This happened once, I deleted everything and downloaded it again. Same thing happened, worked a couple times then it will not open. I have deleted my Mcafee as I seen this may cause issues and that didn’t help. Any ideas would be great!

if you are not using a mac, please try webcontrol