Infinite yield possible on 'ServerScriptService.CrawlServer:WaitForChild("CrawlIdle")' ?

What does this mean??

Script: local rStorage = game:GetService("ReplicatedStorage") local rEvents = rStorage:WaitForChild("RemoteEvents")

game.Players.PlayerAdded:Connect(function(plr) local crawlValue = Instance.new("BoolValue",plr) crawlValue.Value = false crawlValue.Name = "CrawlEnabled"

local char = workspace:WaitForChild(plr.Name)
local human = char:WaitForChild("Humanoid")

local idleLoaded = human:LoadAnimation(script:WaitForChild("CrawlIdle"))
local moveLoaded = human:LoadAnimation(script:WaitForChild("CrawlMove"))

human.Running:Connect(function(speed)
    if speed > 0 and crawlValue.Value == true then
        moveLoaded:Play()
    else
        moveLoaded:Stop()
    end
end)

crawlValue:GetPropertyChangedSignal("Value"):Connect(function()
    if crawlValue.Value == true then
        human.WalkSpeed = 8
       
        idleLoaded:Play()
    else
        human.WalkSpeed = 16
       
        idleLoaded:Stop()
        moveLoaded:Stop()
    end
end)

end)

rEvents.CrawlEvent.OnServerEvent:Connect(function(plr,enabled) local crawlValue = plr:WaitForChild("CrawlEnabled")

crawlValue.Value = enabled

end)

Credits to Monsieur_Robert for the answer His Answer

"Essentially all this means is that ROBLOX is warning you that your script can potentially wait forever, if the object you set to wait for hasn't been made.

You shouldn't have a problem with it (and it is just a warning, not an error), but if you want to get rid of the error, set a time where if the object is not created, the WaitForChild will just return nil and end"

EDIT: Sorry for the non-working link. I don't know how to link things.