[17:31:29 WARN]: [Facility] Task #6 for Facility v1.0.0 generated an exception
java.lang.RuntimeException: Cannot construct BlockPosition.
        at com.comphenix.protocol.wrappers.BlockPosition$1.getGeneric(BlockPosition.java:182) ~[ProtocolLib.jar:?]
        at com.comphenix.protocol.wrappers.BlockPosition$1.getGeneric(BlockPosition.java:165) ~[ProtocolLib.jar:?]
        at com.comphenix.protocol.reflect.StructureModifier.writeInternal(StructureModifier.java:357) ~[ProtocolLib.jar:?]
        at com.comphenix.protocol.reflect.StructureModifier.write(StructureModifier.java:321) ~[ProtocolLib.jar:?]
        at themasterkitty.facility.Facility.sendCrawlPacket(Facility.java:53) ~[Facility-1.0.0.jar:?]
        at themasterkitty.facility.Facility$2.lambda$run$0(Facility.java:82) ~[Facility-1.0.0.jar:?]
        at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?]
        at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1092) ~[?:?]
        at themasterkitty.facility.Facility$2.run(Facility.java:72) ~[Facility-1.0.0.jar:?]
        at org.bukkit.craftbukkit.v1_20_R2.scheduler.CraftTask.run(CraftTask.java:101) ~[paper-1.20.2.jar:git-Paper-318]
        at org.bukkit.craftbukkit.v1_20_R2.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:480) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1470) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:446) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1379) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1156) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315) ~[paper-1.20.2.jar:git-Paper-318]
        at java.lang.Thread.run(Thread.java:1589) ~[?:?]
Caused by: java.lang.NullPointerException: Cannot read field "x" because "specific" is null
        at com.comphenix.protocol.wrappers.BlockPosition$1.getGeneric(BlockPosition.java:179) ~[ProtocolLib.jar:?]
        ... 16 more

public void sendCrawlPacket(Player player, BlockPosition pos, boolean delete) {
        PacketContainer packet = protocol.createPacket(PacketType.Play.Server.BLOCK_CHANGE);
        packet.getBlockPositionModifier().write(0, pos);
        packet.getBlockData().write(0, WrappedBlockData.createData(delete ? Material.AIR : Material.BARRIER));
        protocol.sendServerPacket(player, packet, false);
    }
    
    Bukkit.getOnlinePlayers().forEach(player -> {
                    if (!player.isSneaking()) {
                        if (crawlingdel.containsKey(player))
                            sendCrawlPacket(player, crawlingdel.remove(player), true);
                        return;
                    }
                    BlockPosition newpos = new BlockPosition(player.getLocation().getBlockX(), player.getLocation().getBlockY() + 1, player.getLocation().getBlockZ());
                    if (!newpos.equals(crawlingdel.get(player))) {
                        sendCrawlPacket(player, newpos, false);
                        sendCrawlPacket(player, crawlingdel.get(player), true); // ln 82
                        crawlingdel.put(player, newpos);
                    }
                });