[09:22:00] [Server thread/INFO]: Preparing level "world"
[09:22:01] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.AbstractMethodError: Receiver class net.minecraft.world.level.World$2 does not define or inherit an implementation of the resolved method 'abstract void a(net.minecraft.world.level.border.WorldBorder, double, double)' of interface net.minecraft.world.level.border.IWorldBorderListener.
	at net.minecraft.world.level.border.WorldBorder.c(WorldBorder.java:122) ~[spigot-1.20-R0.1-SNAPSHOT.jar:3765-Spigot-81b9def-e1188ed]
	at net.minecraft.world.level.border.WorldBorder.a(WorldBorder.java:262) ~[spigot-1.20-R0.1-SNAPSHOT.jar:3765-Spigot-81b9def-e1188ed]
	at net.minecraft.server.MinecraftServer.initWorld(MinecraftServer.java:605) ~[spigot-1.20-R0.1-SNAPSHOT.jar:3765-Spigot-81b9def-e1188ed]
	at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:573) ~[spigot-1.20-R0.1-SNAPSHOT.jar:3765-Spigot-81b9def-e1188ed]
	at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:414) ~[spigot-1.20-R0.1-SNAPSHOT.jar:3765-Spigot-81b9def-e1188ed]
	at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:250) ~[spigot-1.20-R0.1-SNAPSHOT.jar:3765-Spigot-81b9def-e1188ed]
	at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:973) ~[spigot-1.20-R0.1-SNAPSHOT.jar:3765-Spigot-81b9def-e1188ed]
	at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:304) ~[spigot-1.20-R0.1-SNAPSHOT.jar:3765-Spigot-81b9def-e1188ed]
	at java.lang.Thread.run(Thread.java:1589) ~[?:?]