how to show all clients connected on freeradius 3

Hi, when I do radwho , i have this error Wed May 6 01:45:22 2015 : Error: /usr/local/etc/raddb/policy.d/eap[10]: Parse e rror in condition Wed May 6 01:45:22 2015 : Error: if (control:State) { Wed May 6 01:45:22 2015 : Error: ^ Expected a module return code radwho: Error reading or parsing radiusd.conf.