>.... [07:58:10 FATAL]: Failed to prepare async save, attempting synchronous save
java.lang.IllegalStateException: Double scheduling chunk save for task: Chunk task: class:com.destroystokyo.paper.io.chunk.ChunkSaveTask, for world 'marte', (3,-28), hashcode:74366448, priority: 4
at com.destroystokyo.paper.io.chunk.ChunkTaskManager.lambda$scheduleChunkSave$8(ChunkTaskManager.java:305) ~[patched_1.14.4.jar:git-Paper-192]
at java.util.concurrent.ConcurrentHashMap.compute(ConcurrentHashMap.java:1932) ~[?:?]
at com.destroystokyo.paper.io.chunk.ChunkTaskManager.scheduleChunkSave(ChunkTaskManager.java:303) ~[patched_1.14.4.jar:git-Paper-192]
at net.minecraft.server.v1_14_R1.PlayerChunkMap.asyncSave(PlayerChunkMap.java:493) ~[patched_1.14.4.jar:git-Paper-192]
at net.minecraft.server.v1_14_R1.PlayerChunkMap.lambda$a$11(PlayerChunkMap.java:522) ~[patched_1.14.4.jar:git-Paper-192]
at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:714) ~[?:?]
at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) ~[?:?]
at net.minecraft.server.v1_14_R1.PlayerChunkMap.b(PlayerChunkMap.java:442) ~[patched_1.14.4.jar:git-Paper-192]
at net.minecraft.server.v1_14_R1.PlayerChunkMap.unloadChunks(PlayerChunkMap.java:405) ~[patched_1.14.4.jar:git-Paper-192]
at net.minecraft.server.v1_14_R1.ChunkProviderServer.tick(ChunkProviderServer.java:533) ~[patched_1.14.4.jar:git-Paper-192]
at net.minecraft.server.v1_14_R1.WorldServer.doTick(WorldServer.java:348) ~[patched_1.14.4.jar:git-Paper-192]
at net.minecraft.server.v1_14_R1.MinecraftServer.b(MinecraftServer.java:1208) ~[patched_1.14.4.jar:git-Paper-192]
at net.minecraft.server.v1_14_R1.DedicatedServer.b(DedicatedServer.java:417) ~[patched_1.14.4.jar:git-Paper-192]
at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:1075) ~[patched_1.14.4.jar:git-Paper-192]
at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:919) ~[patched_1.14.4.jar:git-Paper-192]
at java.lang.Thread.run(Thread.java:834) [?:?]