[HELP] wanted

[K4stic]

line 3: attempt to compare nil with number

line 11: attempt to compare number with nil

--Client side

-- Check if player didn't get negative wanted points 
function checkWanted () 
    if (tonumber(getElementData(localPlayer, "wantedLevel")) < 0) then 
        setElementData(localPlayer, "wantedLevel",0.0) 
    end 
end 
setTimer(checkWanted,30000,0) 
  
-- Lowers the wanted points from players 
function lowerWanted () 
    if (tonumber(getElementData(localPlayer, "wantedLevel")) > 0) then 
        setElementData(localPlayer, "wantedLevel", getElementData(localPlayer, "wantedLevel")-0.5) 
    end 
end 
setTimer(lowerWanted,60000,0) 

line 6: attempt to concatenate a boolean value

--Server side

-- Show your wantedlevel only the level not the stars 
function show_wanted_level(player) 
        if getElementData( player, "wantedLevel") == 0.0 then 
                outputChatBox ( "Your wantedlevel is " .. getElementData( player, "wantedLevel"), player, 0, 200, 0 ) 
        else 
                outputChatBox ( "Your wantedlevel is " .. getElementData( player, "wantedLevel"), player, 200, 0, 0 ) 
        end 
end 
addCommandHandler("wl", show_wanted_level) 

[Wei]

function checkWanted () 
    if getElementData(localPlayer, "wantedLevel") then 
        if (tonumber(getElementData(localPlayer, "wantedLevel")) < 0) then 
        setElementData(localPlayer, "wantedLevel",0.0) 
        end 
    end 
end 
setTimer(checkWanted,30000,0) 
  
function lowerWanted () 
    if getElementData(localPlayer, "wantedLevel") then 
        if (tonumber(getElementData(localPlayer, "wantedLevel")) > 0) then 
            setElementData(localPlayer, "wantedLevel", getElementData(localPlayer, "wantedLevel")-0.5) 
        end 
    end 
end 
setTimer(lowerWanted,60000,0) 
  
-- SERVER 
  
function show_wanted_level(player) 
    if getElementData( player, "wantedLevel") then 
        if getElementData( player, "wantedLevel") == 0.0 then 
                outputChatBox ( "Your wantedlevel is " .. getElementData( player, "wantedLevel"), player, 0, 200, 0 ) 
        else 
                outputChatBox ( "Your wantedlevel is " .. getElementData( player, "wantedLevel"), player, 200, 0, 0 ) 
        end 
    end 
end 
addCommandHandler("wl", show_wanted_level) 

You must check if the ElementData "wantedLevel" even exsist.