I´m using Multicraft for a Server for me and my friends. We´ve used it a week straight without any problems, but today it couldn´t start... I looked on the Internet for help but couldn´t find anything that wasn´t too confusing for me. 

So long story short the floodgate / geyser using Server of mine is 'Loading NBT data' crashing.

Here is the text created in the console and the crash report file attached:

25.10 15:48:30 [Multicraft] Starting server!
25.10 15:48:30 [Multicraft] Loaded config for "Spigot"
25.10 15:48:31 [Server] INFO Unbundling libraries to \bundler
25.10 15:48:32 [Server] INFO Starting server
25.10 15:48:32 [Server] INFO Loading libraries, please wait...
25.10 15:48:39 [Server] ServerMain/INFO Environment: Environment[accountsHost=https://api.mojang.com, sessionHost=https://sessionserver.mojang.com, servicesHost=https://api.minecraftservices.com, name=PROD]
25.10 15:48:42 [Server] ServerMain/INFO Loaded 7 recipes
25.10 15:48:43 [Server] ServerMain/INFO Environment: Environment[accountsHost=https://api.mojang.com, sessionHost=https://sessionserver.mojang.com, servicesHost=https://api.minecraftservices.com, name=PROD]
25.10 15:48:43 [Server] ServerMain/INFO Loaded 7 recipes
25.10 15:48:43 [Server] Server thread/INFO Starting minecraft server version 1.20.2
25.10 15:48:43 [Server] Server thread/INFO Loading properties
25.10 15:48:43 [Server] Server thread/INFO This server is running CraftBukkit version 3924-Spigot-dba3cdc-6fa69f2 (MC: 1.20.2) (Implementing API version 1.20.2-R0.1-SNAPSHOT)
25.10 15:48:44 [Server] Server thread/INFO Debug logging is disabled
25.10 15:48:44 [Server] Server thread/INFO Server Ping Player Sample Count: 12
25.10 15:48:44 [Server] Server thread/INFO Using 4 threads for Netty based IO
25.10 15:48:44 [Server] Server thread/INFO Default game type: SURVIVAL
25.10 15:48:44 [Server] Server thread/INFO Generating keypair
25.10 15:48:44 [Server] Server thread/INFO Starting Minecraft server on 192.168.125.82:59114
25.10 15:48:44 [Server] Server thread/INFO Using default channel type
25.10 15:48:44 [Server] Server thread/INFO [floodgate] Loading floodgate v2.2.2-SNAPSHOT (b85-71acc6c)
25.10 15:48:45 [Server] Server thread/INFO [floodgate] Floodgate wurde in 780 ms gestartet
25.10 15:48:45 [Server] Server thread/INFO [Geyser-Spigot] Loading Geyser-Spigot v2.2.0-SNAPSHOT
25.10 15:48:46 [Server] Server thread/INFO [Geyser-Spigot] Loading extensions...
25.10 15:48:46 [Server] Server thread/INFO [Geyser-Spigot] Loaded 0 extension(s)
25.10 15:48:46 [Server] Server thread/INFO Preparing level "world"
25.10 15:48:46 [Server] Server thread/INFO -------- World Settings For [world] --------
25.10 15:48:46 [Server] Server thread/INFO Allow Zombie Pigmen to spawn from portal blocks: true
25.10 15:48:46 [Server] Server thread/INFO Experience Merge Radius: 3.0
25.10 15:48:46 [Server] Server thread/INFO Mob Spawn Range: 6
25.10 15:48:46 [Server] Server thread/INFO Cactus Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Cane Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Melon Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Mushroom Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Pumpkin Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Sapling Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Beetroot Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Carrot Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Potato Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Wheat Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO NetherWart Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Vine Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Cocoa Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Bamboo Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO SweetBerry Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Kelp Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO TwistingVines Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO WeepingVines Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO CaveVines Growth Modifier: 100%
25.10 15:48:46 [Server] Server thread/INFO Entity Activation Range: An 32 / Mo 32 / Ra 48 / Mi 16 / Tiv true / Isa false
25.10 15:48:46 [Server] Server thread/INFO Entity Tracking Range: Pl 48 / An 48 / Mo 48 / Mi 32 / Di 128 / Other 64
25.10 15:48:46 [Server] Server thread/INFO Custom Map Seeds: Village: 10387312 Desert: 14357617 Igloo: 14357618 Jungle: 14357619 Swamp: 14357620 Monument: 10387313 Ocean: 14357621 Shipwreck: 165745295 End City: 10387313 Slime: 987234911 Nether: 30084232 Mansion: 10387319 Fossil: 14357921 Portal: 34222645
25.10 15:48:46 [Server] Server thread/INFO Hopper Transfer: 8 Hopper Check: 1 Hopper Amount: 1 Hopper Can Load Chunks: false
25.10 15:48:47 [Multicraft] Skipped 43 lines due to rate limit (30/s)
25.10 15:48:50 [Server] Server thread/INFO Bamboo Growth Modifier: 100%
25.10 15:48:50 [Server] Server thread/INFO SweetBerry Growth Modifier: 100%
25.10 15:48:50 [Server] Server thread/INFO Kelp Growth Modifier: 100%
25.10 15:48:50 [Server] Server thread/INFO TwistingVines Growth Modifier: 100%
25.10 15:48:50 [Server] Server thread/INFO WeepingVines Growth Modifier: 100%
25.10 15:48:50 [Server] Server thread/INFO CaveVines Growth Modifier: 100%
25.10 15:48:50 [Server] Server thread/INFO Entity Activation Range: An 32 / Mo 32 / Ra 48 / Mi 16 / Tiv true / Isa false
25.10 15:48:50 [Server] Server thread/INFO Entity Tracking Range: Pl 48 / An 48 / Mo 48 / Mi 32 / Di 128 / Other 64
25.10 15:48:50 [Server] Server thread/INFO Custom Map Seeds: Village: 10387312 Desert: 14357617 Igloo: 14357618 Jungle: 14357619 Swamp: 14357620 Monument: 10387313 Ocean: 14357621 Shipwreck: 165745295 End City: 10387313 Slime: 987234911 Nether: 30084232 Mansion: 10387319 Fossil: 14357921 Portal: 34222645
25.10 15:48:50 [Server] Server thread/INFO Hopper Transfer: 8 Hopper Check: 1 Hopper Amount: 1 Hopper Can Load Chunks: false
25.10 15:48:50 [Server] Server thread/INFO Max TNT Explosions: 100
25.10 15:48:50 [Server] Server thread/INFO Tile Max Tick Time: 50ms Entity max Tick Time: 50ms
25.10 15:48:50 [Server] Server thread/INFO Simulation Distance: 10
25.10 15:48:50 [Server] Server thread/INFO View Distance: 10
25.10 15:48:50 [Server] Server thread/INFO Nerfing mobs spawned from spawners: false
25.10 15:48:50 [Server] Server thread/INFO Arrow Despawn Rate: 1200 Trident Respawn Rate:1200
25.10 15:48:50 [Server] Server thread/INFO Item Merge Radius: 2.5
25.10 15:48:50 [Server] Server thread/INFO Item Despawn Rate: 6000
25.10 15:48:50 [Server] Server thread/INFO Zombie Aggressive Towards Villager: true
25.10 15:48:50 [Server] Server thread/ERROR Encountered an unexpected exception
25.10 15:48:50 [Server] INFO net.minecraft.ReportedException: Loading NBT data
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound.a(SourceFile:525) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound$1.d(SourceFile:75) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound$1.a(SourceFile:62) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound$1.c(SourceFile:57) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound.a(SourceFile:519) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound$1.d(SourceFile:75) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound$1.a(SourceFile:62) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound$1.c(SourceFile:57) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:310) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTCompressedStreamTools.c(NBTCompressedStreamTools.java:304) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:238) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:58) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:33) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.world.level.storage.Convertable.lambda$8(Convertable.java:329) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.world.level.storage.Convertable.a(Convertable.java:292) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.world.level.storage.Convertable$ConversionSession.a(Convertable.java:586) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:496) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:400) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:250) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:954) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:298) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at java.lang.Thread.run(Unknown Source) ~[?:?]
25.10 15:48:50 [Server] INFO Caused by: java.io.EOFException: Unexpected end of ZLIB input stream
25.10 15:48:50 [Server] INFO at java.util.zip.InflaterInputStream.fill(Unknown Source) ~[?:?]
25.10 15:48:50 [Server] INFO at java.util.zip.InflaterInputStream.read(Unknown Source) ~[?:?]
25.10 15:48:50 [Server] INFO at java.util.zip.GZIPInputStream.read(Unknown Source) ~[?:?]
25.10 15:48:50 [Server] INFO at net.minecraft.util.FastBufferedInputStream.read(SourceFile:45) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at java.io.DataInputStream.readFully(Unknown Source) ~[?:?]
25.10 15:48:50 [Server] INFO at java.io.DataInputStream.readUTF(Unknown Source) ~[?:?]
25.10 15:48:50 [Server] INFO at java.io.DataInputStream.readUTF(Unknown Source) ~[?:?]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound$1.e(SourceFile:147) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:50 [Server] INFO at net.minecraft.nbt.NBTTagCompound$1.d(SourceFile:74) ~[spigot-1.20.2-R0.1-SNAPSHOT.jar:3924-Spigot-dba3cdc-6fa69f2]
25.10 15:48:51 [Multicraft] Server shut down (starting)
25.10 15:48:51 [Multicraft] Restarting crashed server in 5.0 seconds
25.10 15:48:51 [Multicraft] Server stopped
25.10 15:48:55 [Multicraft] Received stop command
25.10 15:48:55 [Multicraft] Server stopped