Error: 'end' expected (to close 'function' at line 24) near 'elseif'

[Denaco]

anyone know how to fix it ???
elseif (labelName == "Start")then
setWalkerEnabled(false)
Self.CloseContainers()
Self.OpenMainBackpack(true):OpenChildren({Supplies Backpack, true}, {LootBackpack, true})
Container.GetLast():Minimize()
setWalkerEnabled(true)
elseif (labelName == "PreDP") then
setWalkerEnabled(false)
Self.CloseContainers()
Self.OpenMainBackpack(true):OpenChildren({LootBack pack, true})
Container.GetLast():Minimize()
setWalkerEnabled(true)

[maroxy]

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