I have downloaded the app, installed it, added myself to its permission set. Still, I cannot do anything in the tab. See the screenshot. The AppExchange page does not give any instructions, the Github page (Github) does not help. Who can help me out?
Have you tried to check your console log to see if there is any error? What do you see in the app page? Do you see the components there? There should be something wrong on permission level. Do you have permission for the apex class called StreamingMonitorController? I've successfully installed many times when I installed it for Admins only.