[13:16:50 ERROR]: No key dirt_provider in MapLike[{decorators:[],foliage_placer:{height:3,offset:0,radius:2,type:"minecraft:blob_foliage_placer"},heightmap:"OCEAN_FLOOR",ignore_vines:1b,leaves_provider:{state:{Name:"minecraft:oak_leaves",Properties:{distance:"7",persistent:"false"}},type:"minecraft:simple_state_provider"},max_water_depth:0,minimum_size:{limit:1,lower_size:0,type:"minecraft:two_layers_feature_size",upper_size:1},trunk_placer:{base_height:4,height_rand_a:2,height_rand_b:0,type:"minecraft:straight_trunk_placer"},trunk_provider:{state:{Name:"minecraft:oak_log",Properties:{axis:"y"}},type:"minecraft:simple_state_provider"}}]; No key sapling_provider in MapLike[{decorators:[],foliage_placer:{height:3,offset:0,radius:2,type:"minecraft:blob_foliage_placer"},heightmap:"OCEAN_FLOOR",ignore_vines:1b,leaves_provider:{state:{Name:"minecraft:oak_leaves",Properties:{distance:"7",persistent:"false"}},type:"minecraft:simple_state_provider"},max_water_depth:0,minimum_size:{limit:1,lower_size:0,type:"minecraft:two_layers_feature_size",upper_size:1},trunk_placer:{base_height:4,height_rand_a:2,height_rand_b:0,type:"minecraft:straight_trunk_placer"},trunk_provider:{state:{Name:"minecraft:oak_log",Properties:{axis:"y"}},type:"minecraft:simple_state_provider"}}]; No key foliage_provider in MapLike[{decorators:[],foliage_placer:{height:3,offset:0,radius:2,type:"minecraft:blob_foliage_placer"},heightmap:"OCEAN_FLOOR",ignore_vines:1b,leaves_provider:{state:{Name:"minecraft:oak_leaves",Properties:{distance:"7",persistent:"false"}},type:"minecraft:simple_state_provider"},max_water_depth:0,minimum_size:{limit:1,lower_size:0,type:"minecraft:two_layers_feature_size",upper_size:1},trunk_placer:{base_height:4,height_rand_a:2,height_rand_b:0,type:"minecraft:straight_trunk_placer"},trunk_provider:{state:{Name:"minecraft:oak_log",Properties:{axis:"y"}},type:"minecraft:simple_state_provider"}}]
[13:16:50 ERROR]: Exception loading structure piece with id minecraft:jigsaw
java.lang.IllegalStateException: Invalid pool element found
        at net.minecraft.world.level.levelgen.structure.PoolElementStructurePiece.lambda$new$0(PoolElementStructurePiece.java:54) ~[app:?]
        at java.util.Optional.orElseThrow(Unknown Source) ~[?:?]
        at net.minecraft.world.level.levelgen.structure.PoolElementStructurePiece.<init>(PoolElementStructurePiece.java:54) ~[app:?]
        at net.minecraft.world.level.levelgen.feature.StructureFeature.loadStaticStart(StructureFeature.java:129) ~[patched_1.17.1.jar:git-Paper-165]
        at net.minecraft.world.level.chunk.storage.ChunkSerializer.unpackStructureStart(ChunkSerializer.java:717) ~[app:?]
        at net.minecraft.world.level.chunk.storage.ChunkSerializer.loadChunk(ChunkSerializer.java:272) ~[app:?]
        at com.destroystokyo.paper.io.chunk.ChunkLoadTask.executeTask(ChunkLoadTask.java:106) ~[patched_1.17.1.jar:git-Paper-165]
        at com.destroystokyo.paper.io.chunk.ChunkLoadTask.run(ChunkLoadTask.java:38) ~[patched_1.17.1.jar:git-Paper-165]
        at com.destroystokyo.paper.io.QueueExecutorThread.pollTasks(QueueExecutorThread.java:105) ~[patched_1.17.1.jar:git-Paper-165]
        at com.destroystokyo.paper.io.QueueExecutorThread.run(QueueExecutorThread.java:38) ~[patched_1.17.1.jar:git-Paper-165]