Are you admin on server?You didn't know the commands?So look at here for some hints:
Level 1: Basic Moderator
Player: /getinfo, /weaps, /ping, //ip,
Vehicle: /fix, /repair, /addnos, /tcar
Tele: /saveplacae, /gotoplace
Adm: /onduty, /saveskin, /useskin, /dontuseskin, /setmytime, /adminarea
Other: /lconfig, /viplist, /morning, /reports, /richlist, /miniguns
Level 2: Moderator
+ Level 1 commands.
Player: /giveweapon, /setcolour, /burn, /spawn, /disarm, /highlight, /jetpack, /flip, /fu
Player: /warn, /slap, /(un)mute, /laston, /lspec, /lspecoff
Vehicle: /acar, /abike, /aheli, /aboat, /aplane, /lspecvehicle
Tele: /goto, /vgoto, /lgoto
Adm: /lmenu, /clearchat, /write, /announce, /announce2, /screen, /(un)lockcar
Other: /wanted, /jailed, /frozen, /muted, /fstyles
Level 3: Master Moderator
+ Level 1 and 2 commands.
Set: set(health/armour/cash/score/skin/wanted/name/weather/time/world/interior/ping/gravity)
All: /setallskin, /armourall, /setallskin, /setallwanted, /setallweather, /setalltime, setallworld
All: /setallscore, /setallcash, /giveallcash, /giveallweapon, /clearallchat, /healall, disablechat
Player: /ubound, /duel, /akill, /aka, /caps, /(un)freeze, /kick, /explode, /(un)jail, /force, eject, /(s)removecash
Vehicle: /car, /carhealth, /carcolour, /destroycar, /vget, /givecar
Tele: teleplayer, gethere, get, move, moveplayer
Other: gps, lcam, setpass, lammo, countdown, aweaps, invisible, visible
Level 4: Administrator
+ Level 1,2 and 3 commands.
All: /spawnall, /muteall, /unmuteall, /getall, /killall, /freezeall, /unfreezeall
All: /kickall, /slapalll, /explodeall, /disarmall, /ejectall
Player: /cage, /ban, /rban, /tempban, /settemplevel, /crash
Adm: /ctele, /lockserver, /enable, /disable, /spam, /god, /godcar, /botcheck, /forbidname, /forbidword, /fakedeath
Other: /uconfig, /die, /hide, /unhide
Level 5: Master Administrator
+ Level 1,2,3 and 4 commands.
+ Level 5 is Immune for all commands
Player: /setlevel, /fakechat, /fakedeath, /fakecmd
Adm: /god, /sgod, /console
Other: /pickup, /object, /respawncars