Server mode crashes, can someone help?

I was creating a dataStore script and suddenly when I tested the game on server mode, the game crashes after about 5-10 seconds. I can't use the devConsole because the serverSide cleared. Here's the datastore code.

--SAVE


function Enter(plr)
    plr:WaitForDataReady()

    local DS = game:GetService("DataStoreService"):GetDataStore("STATS")
    local l=DS:GetDataStore(plr.UserId.."_GEMS")

    plr.leaderstats.Gems.Value=l



        plr.leaderstats["Blue Coins"].Value=DS:GetAsync(plr.userId.."_BCOINS")



    ge=plr.Gems:GetChildren()

    for i=1,#ge do
        ge[i].Value=DS:GetAsync(plr.userId.."_GEM_"..i)
    end

    bc=plr.BCoins:GetChildren()     

    for i=1,#bc do
        bc[i].Value=DS:GetAsync(plr.userId.."_BC_"..i)
    end
end

function Exit(oplr)

    local DS = game:GetService("DataStoreService"):GetDataStore("STATS")

    ge=oplr.Gems:GetChildren()
    DS:SetAsync(oplr.userId.."_GEMS",oplr.leaderstats.Gems.Value)
DS:SetAsync(oplr.userId.."_BCOINS",oplr.leaderstats["Blue Coins"].Value)




    for i=1,#ge do
        DS:SetAsync(oplr.userId.."_GEM_"..i,oplr.Gems.i.Value)
    end

    bc=oplr.BCoins:GetChildren()        

    for i=1,#bc do
        DS:SetAsync(oplr.userId.."_BC_"..i,oplr.BCoins.i.Value)
    end

end

game.Players.PlayerAdded:connect(Enter)
game.Players.PlayerRemoving:connect(Exit)

Now, could this have anything to do with the number of asyncs created? I will peovide any more scripts if needed.

Here's the game link.

http://www.roblox.com/games/292183989/Pencils-Place-Number-86

All thanks in advance!