Mystcraft error

[OracleFish]

18.03 20:04:55 [Server] SEVERE at cd.b(NBTBase.java:74)
18.03 20:04:55 [Server] SEVERE at java.io.DataInputStream.readByte(Unknown Source)
18.03 20:04:55 [Server] SEVERE at java.io.BufferedInputStream.read(Unknown Source)
18.03 20:04:55 [Server] SEVERE at java.io.BufferedInputStream.fill(Unknown Source)
18.03 20:04:55 [Server] SEVERE at java.util.zip.GZIPInputStream.read(Unknown Source)
18.03 20:04:55 [Server] SEVERE at java.util.zip.InflaterInputStream.read(Unknown Source)
18.03 20:04:55 [Server] SEVERE at java.util.zip.InflaterInputStream.fill(Unknown Source)
18.03 20:04:55 [Server] SEVERE java.io.EOFException: Unexpected end of ZLIB input stream
18.03 20:04:55 [Server] INFO Loading dimension 28 (world_myst/age28) (ho@7ef4fb0c)
18.03 20:04:54 [Server] INFO Loading dimension 31 (world_myst/age31) (ho@7ef4fb0c)
18.03 20:04:54 [Server] INFO Loading dimension 25 (world_myst/age25) (ho@7ef4fb0c)
18.03 20:04:54 [Server] INFO Loading dimension 29 (world_myst/age29) (ho@7ef4fb0c)
18.03 20:04:54 [Server] INFO Loading dimension 26 (world_myst/age26) (ho@7ef4fb0c)
18.03 20:04:54 [Server] INFO Loading dimension 32 (world_myst/age32) (ho@7ef4fb0c)
18.03 20:04:54 [Server] INFO Loading dimension 30 (world_myst/age30) (ho@7ef4fb0c)
18.03 20:04:54 [Server] INFO MinecraftServer mystProvider = 9
18.03 20:04:54 [Server] INFO Loading dimension -1 (world_nether) (ho@7ef4fb0c)
18.03 20:04:54 [Server] INFO Loading dimension 1 (world_the_end) (ho@7ef4fb0c)
18.03 20:04:54 [Server] INFO [TwilightForest] Loaded feature cache with 55857 chunks

 

[dontrell94]

First off, you should not have that many worlds...

go into your data folder and delete the ones that you aren't using.

but we do need the whole crash log to fix your problem.