Help fix the error

If I re-enter the world, Minecraft will crashes.

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Crash Report

---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 12/6/20 4:45 PM
Description: Ticking memory connection

net.minecraft.util.ResourceLocationException: Non [a-z0-9/._-] character in path of location: distant_worlds:@registryname
    at net.minecraft.util.ResourceLocation.<init>(ResourceLocation.java:30) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
    at net.minecraft.util.ResourceLocation.<init>(ResourceLocation.java:35) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
    at net.mcreator.distant_worlds.procedures.ABookOfDistantWorldsPrProcedure.executeProcedure(ABookOfDistantWorldsPrProcedure.java:41) ~[main/:?] {re:classloading}
    at net.mcreator.distant_worlds.procedures.ABookOfDistantWorldsPrProcedure.onPlayerLoggedIn(ABookOfDistantWorldsPrProcedure.java:63) ~[main/:?] {re:classloading}
    at net.minecraftforge.eventbus.ASMEventHandler_145_ABookOfDistantWorldsPrProcedure_onPlayerLoggedIn_PlayerLoggedInEvent.invoke(.dynamic) ~[?:?] {}
    at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:80) ~[eventbus-2.2.0-service.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258) ~[eventbus-2.2.0-service.jar:?] {}
    at net.minecraftforge.fml.hooks.BasicEventHooks.firePlayerLoggedIn(BasicEventHooks.java:43) ~[?:?] {re:classloading}
    at net.minecraft.server.management.PlayerList.initializeConnectionToPlayer(PlayerList.java:210) ~[?:?] {re:classloading}
    at net.minecraft.network.login.ServerLoginNetHandler.tryAcceptPlayer(ServerLoginNetHandler.java:120) ~[?:?] {re:classloading}
    at net.minecraft.network.login.ServerLoginNetHandler.tick(ServerLoginNetHandler.java:64) ~[?:?] {re:classloading}
    at net.minecraft.network.NetworkManager.tick(NetworkManager.java:246) ~[?:?] {re:classloading}
    at net.minecraft.network.NetworkSystem.tick(NetworkSystem.java:152) ~[?:?] {re:classloading}
    at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:903) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:821) ~[?:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:662) [?:?] {re:classloading,pl:accesstransformer:B}
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_265] {}

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server thread
Stacktrace:
    at net.minecraft.util.ResourceLocation.<init>(ResourceLocation.java:30)
    at net.minecraft.util.ResourceLocation.<init>(ResourceLocation.java:35)
    at net.mcreator.distant_worlds.procedures.ABookOfDistantWorldsPrProcedure.executeProcedure(ABookOfDistantWorldsPrProcedure.java:41)
    at net.mcreator.distant_worlds.procedures.ABookOfDistantWorldsPrProcedure.onPlayerLoggedIn(ABookOfDistantWorldsPrProcedure.java:63)
    at net.minecraftforge.eventbus.ASMEventHandler_145_ABookOfDistantWorldsPrProcedure_onPlayerLoggedIn_PlayerLoggedInEvent.invoke(.dynamic)
    at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:80)
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258)
    at net.minecraftforge.fml.hooks.BasicEventHooks.firePlayerLoggedIn(BasicEventHooks.java:43)
    at net.minecraft.server.management.PlayerList.initializeConnectionToPlayer(PlayerList.java:210)
    at net.minecraft.network.login.ServerLoginNetHandler.tryAcceptPlayer(ServerLoginNetHandler.java:120)
    at net.minecraft.network.login.ServerLoginNetHandler.tick(ServerLoginNetHandler.java:64)
    at net.minecraft.network.NetworkManager.tick(NetworkManager.java:246)

-- Ticking connection --
Details:
    Connection: net.minecraft.network.NetworkManager@6383452
Stacktrace:
    at net.minecraft.network.NetworkSystem.tick(NetworkSystem.java:152)
    at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:903)
    at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:821)
    at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:662)
    at java.lang.Thread.run(Thread.java:748)

-- System Details --
Details:
    Minecraft Version: 1.15.2
    Minecraft Version ID: 1.15.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_265, BellSoft
    Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), BellSoft
    Memory: 170517232 bytes (162 MB) / 699924480 bytes (667 MB) up to 926941184 bytes (884 MB)
    CPUs: 8
    JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
    ModLauncher: 5.1.2+70+master.2845bb9
    ModLauncher launch target: fmluserdevclient
    ModLauncher naming: mcp
    ModLauncher services: 
        /eventbus-2.2.0-service.jar eventbus PLUGINSERVICE 
        /forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar object_holder_definalize PLUGINSERVICE 
        /forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtime_enum_extender PLUGINSERVICE 
        /accesstransformers-2.1.1-shadowed.jar accesstransformer PLUGINSERVICE 
        /forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar capability_inject_definalize PLUGINSERVICE 
        /forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtimedistcleaner PLUGINSERVICE 
        /forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar fml TRANSFORMATIONSERVICE 
    FML: 31.2
    Forge: net.minecraftforge:31.2.0
    FML Language Providers: 
        javafml@31.2
        minecraft@1
    Mod List: 
        client-extra.jar Minecraft {minecraft@1.15.2 DONE}
        forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar Forge {forge@31.2.0 DONE}
        main Distant Worlds {distant_worlds@1.1.1 DONE}
    Player Count: 1 / 8; [ServerPlayerEntity['Dev'/974, l='New World', x=-195.17, y=67.00, z=-219.25]]
    Data Packs: vanilla, mod:forge (incompatible), mod:distant_worlds
    Type: Integrated Server (map_client.txt)
    Is Modded: Definitely; Client brand changed to 'forge'