옛날부터 친구들이랑 즐겼던 맵을 한번 버킷으로 열어볼려고 시도하는데 

[17:10:58 ERROR]: Error loading saved data: scoreboard

java.io.IOException: Root tag must be a named compound tag

        at net.minecraft.nbt.NbtIo.read(NbtIo.java:243) ~[?:?]

        at net.minecraft.nbt.NbtIo.read(NbtIo.java:228) ~[?:?]

        at net.minecraft.world.level.storage.DimensionDataStorage.readTagFromDisk(DimensionDataStorage.java:92) ~[?:?]

        at net.minecraft.world.level.storage.DimensionDataStorage.readSavedData(DimensionDataStorage.java:65) ~[?:?]

        at net.minecraft.world.level.storage.DimensionDataStorage.get(DimensionDataStorage.java:53) ~[?:?]

        at net.minecraft.world.level.storage.DimensionDataStorage.computeIfAbsent(DimensionDataStorage.java:39) ~[?:?]

        at net.minecraft.server.MinecraftServer.readScoreboard(MinecraftServer.java:421) ~[paper-1.20.1.jar:git-Paper-181]

        at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:587) ~[paper-1.20.1.jar:git-Paper-181]

        at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:434) ~[paper-1.20.1.jar:git-Paper-181]

        at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:308) ~[paper-1.20.1.jar:git-Paper-181]

        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1100) ~[paper-1.20.1.jar:git-Paper-181]

        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:317) ~[paper-1.20.1.jar:git-Paper-181]

        at java.lang.Thread.run(Thread.java:833) ~[?:?]

이렇게 뜹니다. 혹시나 해서 server.properties에 있는 level-type도 flat으로 바꿔봤는데도 계속 저렇게 뜹니다. 뭐가 문제인가요?