Hilfe, wieso wirde der Marker nicht gelöscht?

local ABSArea = createColRectangle ( -1892, -858.5, 32 , 150 )
 
function ABS_Enter ( thePlayer, matchingDimension )
	if getElementType ( thePlayer ) == "player" then
		local abs_veh = getPedOccupiedVehicle(player)
		if abs_veh ~= false then
			for i, abs_veh in pairs( getElementsByType("vehicle") ) do
				if vioGetElementData ( abs_veh, "owner" ) == getPlayerName ( player ) and getElementData(abs_veh, "towed") then
					local arrowMarker = createMarker ( 0, 0, 0, "arrow", .75, 0, 0, 255, 170 )
					attachElements ( arrowMarker, abs_veh, 0, 0, 3 )
				end
			end
		end
	end
end
addEventHandler ( "onColShapeHit", ABSArea, ABS_Enter )
 
function ABS_Exit ( thePlayer, matchingDimension )
	if getElementType ( thePlayer ) == "player" then
		if isPedDead ( thePlayer ) ~= true then
			if vioGetElementData ( abs_veh, "owner" ) == getPlayerName ( player ) and getElementData(abs_veh, "towed") then
				for i, abs_veh in pairs( getElementsByType("vehicle") ) do
					if getElementData(abs_veh, "towed") then
						detachElements ( arrowMarker )
					end
				end
			end
		end
	end
end
addEventHandler ( "onColShapeLeave", ABSArea, ABS_Exit )