This plugin does not work, has loaded it on my server and has also given me permission to adminhammer.allow, but when I go over to a building and right-click, there coming no information available. :/ 

{
  "LogToConsole": true,
  "ShowSphere": true,
  "ToolDistance": 200.0,
  "ToolUsed": "hammer"
}​

Have you activated the tool by running the /ah command?

Yes and nothing happens :/ 

Can you run this command in your console:

o.show user YourSteamID


(Replace YourSteamID with your SteamID64)

and send a screenshot of the result?

It will look something like this:

Now it works, i have forget and set user and so steamid64 so ex ( oxide.grant user 76561198105324250 adminhammer.allow ) 

Sorry my bad :)