MatchBox Map Not working?

[ManiTheFerfriGuy]

recently i tried to run a server with matchbox but i came to an issue
im on Ubuntu 24.04, Paper, 1.21.11
only plugins: ProtocolLib, MatchBox

everything works until i add the map.

[15:40:43 WARN]: Failed to load datapacks, can't proceed with server load. You can either fix your datapacks or reset to vanilla with --safeMode
java.util.concurrent.ExecutionException: java.lang.IllegalStateException: No key dimensions in MapLike[{}]; No key seed in MapLike[{}]
at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396) ~[?:?]
at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2073) ~[?:?]
at net.minecraft.server.Main.main(Main.java:283) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
at io.papermc.paper.PaperBootstrap.boot(PaperBootstrap.java:21) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
at org.bukkit.craftbukkit.Main.main(Main.java:204) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
at io.papermc.paperclip.Paperclip.lambda$main$0(Paperclip.java:42) ~[?:?]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
Caused by: java.lang.IllegalStateException: No key dimensions in MapLike[{}]; No key seed in MapLike[{}]
at com.mojang.serialization.DataResult$Error.getOrThrow(DataResult.java:287) ~[datafixerupper-9.0.19.jar:?]
at com.mojang.serialization.DataResult.getOrThrow(DataResult.java:81) ~[datafixerupper-9.0.19.jar:?]
at net.minecraft.world.level.storage.LevelStorageSource.getLevelDataAndDimensions(LevelStorageSource.java:138) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
at net.minecraft.server.Main.lambda$main$0(Main.java:265) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
at net.minecraft.server.WorldLoader.load(WorldLoader.java:50) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
at net.minecraft.server.Main.lambda$main$1(Main.java:259) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
at net.minecraft.util.Util.blockUntilDone(Util.java:1057) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
at net.minecraft.util.Util.blockUntilDone(Util.java:1052) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
at net.minecraft.server.Main.main(Main.java:258) ~[paper-1.21.11.jar:1.21.11-131-6d5b910]
... 4 more

server instantly crashes.
maybe the map only works on 26.1 or what am i doing wrong