Four steps to running it, then the answers to everything that commonly goes wrong. If you've never used a script before, read the whole page -- it's short.
loadstring(game:HttpGet("https://rvhub.wtf/loader.lua"))()
print("hi"), no script will fix that.Worth understanding, because it explains most of the behaviour people find surprising.
These cover the overwhelming majority of reports.
print. If that produces nothing, the executor is the problem, not the hub.One key, one loader, every supported game.