Missing `SectionPosition` field on `ClientboundServerDataPacket` on 1.19

[ItsRedly]

Describe the bug What is going wrong? Does the plugin crash? What have you tried to try and fix the problem, if anything.

If i try to run any betterportals command it give this error: An internal error occoured while attempting to perform this command

Server Logs Please enable debug logging by setting logLevel in the config file to FINER, then running /bp reload. Try to reproduce your issue, then send your full server log here.

[18:20:57] [Server thread/ERROR]: [BetterPortals] A critical error occurred during plugin execution.
5421 | [18:20:57] [Server thread/ERROR]: [BetterPortals] Please create an issue at https://github.com/Lauriethefish/BetterPortals/issues to get this fixed.
5422 | [18:20:57] [Server thread/WARN]: FieldAccessException: No field with type net.minecraft.core.SectionPosition exists in class ClientboundServerDataPacket.
5423 | [18:20:57] [Server thread/WARN]:     at ProtocolLib.jar//com.comphenix.protocol.reflect.StructureModifier.writeInternal(StructureModifier.java:369)
5424 | [18:20:57] [Server thread/WARN]:     at ProtocolLib.jar//com.comphenix.protocol.reflect.StructureModifier.write(StructureModifier.java:349)
5425 | [18:20:57] [Server thread/WARN]:     at BetterPortals-0.12.1.jar//com.lauriethefish.betterportals.bukkit.block.bukkit.MultiBlockChangeManager_1_16_2.sendChanges(MultiBlockChangeManager_1_16_2.java:77)
5426 | [18:20:57] [Server thread/WARN]:     at BetterPortals-0.12.1.jar//com.lauriethefish.betterportals.bukkit.player.view.block.PlayerBlockView.setPortalBlocks(PlayerBlockView.java:214)
5427 | [18:20:57] [Server thread/WARN]:     at BetterPortals-0.12.1.jar//com.lauriethefish.betterportals.bukkit.player.view.block.PlayerBlockView.update(PlayerBlockView.java:74)
5428 | [18:20:57] [Server thread/WARN]:     at BetterPortals-0.12.1.jar//com.lauriethefish.betterportals.bukkit.player.view.PlayerPortalView.update(PlayerPortalView.java:61)
5429 | [18:20:57] [Server thread/WARN]:     at BetterPortals-0.12.1.jar//com.lauriethefish.betterportals.bukkit.player.PlayerData.updatePortalViews(PlayerData.java:79)
5430 | [18:20:57] [Server thread/WARN]:     at BetterPortals-0.12.1.jar//com.lauriethefish.betterportals.bukkit.player.PlayerData.onUpdate(PlayerData.java:111)
5431 | [18:20:57] [Server thread/WARN]:     at java.base/java.util.HashMap$Values.forEach(HashMap.java:1065)
5432 | [18:20:57] [Server thread/WARN]:     at java.base/java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1092)
5433 | [18:20:57] [Server thread/WARN]:     at BetterPortals-0.12.1.jar//com.lauriethefish.betterportals.bukkit.tasks.MainUpdate.run(MainUpdate.java:47)
5434 | [18:20:57] [Server thread/WARN]:     at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftTask.run(CraftTask.java:101)
5435 | [18:20:57] [Server thread/WARN]:     at org.bukkit.craftbukkit.v1_19_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483)
5436 | [18:20:57] [Server thread/WARN]:     at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1491)
5437 | [18:20:57] [Server thread/WARN]:     at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:446)
5438 | [18:20:57] [Server thread/WARN]:     at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1415)
5439 | [18:20:57] [Server thread/WARN]:     at net.minecraft.server.MinecraftServer.v(MinecraftServer.java:1188)
5440 | [18:20:57] [Server thread/WARN]:     at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:303)
5441 | [18:20:57] [Server thread/WARN]:     at java.base/java.lang.Thread.run(Thread.java:833)
5442 | [18:20:57] [Server thread/INFO]: [BetterPortals] Attempting to shut down the plugin . . .
5443 | [18:20:57] [Server thread/INFO]: [BetterPortals] Disabling BetterPortals v0.12.1

If you can't do this for security reasons, an excerpt of log will probably suffice.

Additional context Plugin Version:0.12.1 Game Version: 1.19