[Sponge]: Could not pass ChangeBlockEvent$Break$Impl to org.spongepowered.mod.plugin.SpongeModPluginContainer@7fd71298
java.util.NoSuchElementException: No value present
        at java.util.Optional.get(Optional.java:135) ~[?:1.8.0_74]
        at de.themoep.bukkit.plugin.RandomTeleport.Listeners.SignListener.onSignDestroy(SignListener.java:73) ~[SignListener.class:1.0.0-SNAPSHOT]
        at org.spongepowered.common.event.listener.BreakListener_SignListener_onSignDestroy193.handle(Unknown Source) ~[?:?]
        at org.spongepowered.common.event.RegisteredListener.handle(RegisteredListener.java:86) ~[RegisteredListener.class:1.8.9-1855-GUI-4.1.0-GUI-BETA-2686]
        at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:217) [SpongeModEventManager.class:1.8.9-1855-GUI-4.1.0-GUI-BETA-2686]
        at org.spongepowered.mod.event.SpongeModEventManager.postBulk(SpongeModEventManager.java:202) [SpongeModEventManager.class:1.8.9-1855-GUI-4.1.0-GUI-BETA-2686]
        at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:244) [SpongeModEventManager.class:1.8.9-1855-GUI-4.1.0-GUI-BETA-2686]
        at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:229) [SpongeModEventManager.class:1.8.9-1855-GUI-4.1.0-GUI-BETA-2686]
        at org.spongepowered.common.SpongeImpl.postEvent(SpongeImpl.java:131) [SpongeImpl.class:1.8.9-1855-GUI-4.1.0-GUI-BETA-2686]
        at org.spongepowered.common.event.CauseTracker.handleBlockCaptures(CauseTracker.java:699) [CauseTracker.class:1.8.9-1855-GUI-4.1.0-GUI-BETA-2686]
        at org.spongepowered.common.event.CauseTracker.handlePostTickCaptures(CauseTracker.java:457) [CauseTracker.class:1.8.9-1855-GUI-4.1.0-GUI-BETA-2686]
        at org.spongepowered.common.network.PacketUtil.onProcessPacket(PacketUtil.java:109) [PacketUtil.class:1.8.9-1855-GUI-4.1.0-GUI-BETA-2686]
        at net.minecraft.network.PacketThreadUtil$1.redirect$onProcessPacket$0(SourceFile:39) [fh$1.class:?]
        at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) [fh$1.class:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_74]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_74]
        at net.minecraft.util.Util.func_181617_a(SourceFile:44) [g.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:660) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:344) [ko.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:605) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481) [MinecraftServer.class:?]