[21:30:08] [Server thread/ERROR] [Sponge]: Error occurred while executing command 'sponge:callback d20c361c-311f-4969-a5e9-8a16d37b7833' for source EntityPlayerMP['Fatyg5'/8, l='world', x=178.98, y=64.00, z=-255.06]: null
java.lang.NullPointerException: null
        at io.github.cjcool06.safetrade.obj.Vault.attemptAccountCreation(Vault.java:575) ~[Vault.class:?]
        at io.github.cjcool06.safetrade.obj.Vault.<init>(Vault.java:50) ~[Vault.class:?]
        at io.github.cjcool06.safetrade.obj.Side.<init>(Side.java:37) ~[Side.class:?]
        at io.github.cjcool06.safetrade.obj.Trade.<init>(Trade.java:56) ~[Trade.class:?]
        at io.github.cjcool06.safetrade.obj.Trade.<init>(Trade.java:51) ~[Trade.class:?]
        at io.github.cjcool06.safetrade.commands.TradeCommand.acceptInvitation(TradeCommand.java:150) ~[TradeCommand.class:?]
        at io.github.cjcool06.safetrade.commands.TradeCommand.lambda$requestTrade$2(TradeCommand.java:104) ~[TradeCommand.class:?]
        at org.spongepowered.common.text.action.SpongeCallbackHolder.lambda$createCommand$0(SpongeCallbackHolder.java:96) ~[SpongeCallbackHolder.class:1.12.2-2768-7.1.5-RC3514]
        at org.spongepowered.api.command.spec.CommandSpec.process(CommandSpec.java:388) ~[CommandSpec.class:1.12.2-2768-7.1.5-RC3514]
        at org.spongepowered.api.command.dispatcher.SimpleDispatcher.process(SimpleDispatcher.java:340) ~[SimpleDispatcher.class:1.12.2-2768-7.1.5-RC3514]
        at org.spongepowered.common.command.SpongeCommandManager.process(SpongeCommandManager.java:334) [SpongeCommandManager.class:1.12.2-2768-7.1.5-RC3514]
        at net.minecraft.command.ServerCommandManager.func_71556_a(SourceFile:1083) [dh.class:?]
        at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:960) [pa.class:?]
        at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:939) [pa.class:?]
        at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(SourceFile:37) [la.class:?]
        at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(SourceFile:9) [la.class:?]
        at org.spongepowered.common.event.tracking.phase.packet.PacketPhaseUtil.onProcessPacket(PacketPhaseUtil.java:193) [PacketPhaseUtil.class:1.12.2-2768-7.1.5-RC3514]
        at net.minecraft.network.PacketThreadUtil$1.redirect$onProcessPacket$zlh000(SourceFile:539) [hv$1.class:?]
        at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) [hv$1.class:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_191]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_191]
        at net.minecraft.util.Util.func_181617_a(SourceFile:46) [h.class:?]
        at org.spongepowered.common.SpongeImplHooks.onUtilRunTask(SpongeImplHooks.java:297) [SpongeImplHooks.class:1.12.2-2768-7.1.5-RC3514]
        at net.minecraft.server.MinecraftServer.redirect$onRun$zjl000(MinecraftServer.java:3970) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:723) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397) [nz.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]