---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 3/2/22, 8:43 AM
Description: Exception in server tick loop

java.lang.NoSuchFieldError: UNDERGROUND
at superlord.goblinsanddungeons.GoblinsAndDungeons.addDimensionalSpacing(GoblinsAndDungeons.java:176) ~[Goblins_Dungeons_1.0.5.jar%2352!:1.0] {re:classloading}
at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247) ~[eventbus-5.0.3.jar%232!:?] {}
at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239) ~[eventbus-5.0.3.jar%232!:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-5.0.3.jar%232!:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-5.0.3.jar%232!:?] {}
at net.minecraft.server.MinecraftServer.m_129815_(MinecraftServer.java:358) ~[client-1.18.1-20211210.034407-srg.jar%2353!:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.m_130006_(MinecraftServer.java:313) ~[client-1.18.1-20211210.034407-srg.jar%2353!:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.client.server.IntegratedServer.m_7038_(IntegratedServer.java:66) ~[client-1.18.1-20211210.034407-srg.jar%2353!:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.server.MinecraftServer.m_130011_(MinecraftServer.java:644) ~[client-1.18.1-20211210.034407-srg.jar%2353!:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.m_177918_(MinecraftServer.java:258) ~[client-1.18.1-20211210.034407-srg.jar%2353!:?] {re:classloading,pl:accesstransformer:B}
at java.lang.Thread.run(Thread.java:833) [?:?] {}

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

-- System Details --
Details:
Minecraft Version: 1.18.1
Minecraft Version ID: 1.18.1
Operating System: Windows 10 (amd64) version 10.0
Java Version: 17.0.1, Microsoft
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft
Memory: 514628872 bytes (490 MiB) / 1476395008 bytes (1408 MiB) up to 2147483648 bytes (2048 MiB)
CPUs: 8
Processor Vendor: GenuineIntel
Processor Name: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
Identifier: Intel64 Family 6 Model 60 Stepping 3
Microarchitecture: Haswell (Client)
Frequency (GHz): 3.39
Number of physical packages: 1
Number of physical CPUs: 4
Number of logical CPUs: 8
Graphics card #0 name: Intel(R) HD Graphics 4600
Graphics card #0 vendor: Intel Corporation (0x8086)
Graphics card #0 VRAM (MB): 1024.00
Graphics card #0 deviceId: 0x0412
Graphics card #0 versionInfo: DriverVersion=20.19.15.5058
Graphics card #1 name: NVIDIA GeForce GTX 1660 Ti
Graphics card #1 vendor: NVIDIA (0x10de)
Graphics card #1 VRAM (MB): 4095.00
Graphics card #1 deviceId: 0x2182
Graphics card #1 versionInfo: DriverVersion=27.21.14.6140
Memory slot #0 capacity (MB): 8192.00
Memory slot #0 clockSpeed (GHz): 1.60
Memory slot #0 type: DDR3
Memory slot #1 capacity (MB): 8192.00
Memory slot #1 clockSpeed (GHz): 1.60
Memory slot #1 type: DDR3
Virtual memory max (MB): 28063.48
Virtual memory used (MB): 16017.61
Swap memory total (MB): 11776.00
Swap memory used (MB): 511.06
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Server Running: true
Player Count: 0 / 8; []
Data Packs: vanilla, mod:forge, mod:goblinsanddungeons
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'forge'; Server brand changed to 'forge'
ModLauncher: 9.0.7+91+master.8569cdf
ModLauncher launch target: forgeclient
ModLauncher naming: srg
ModLauncher services:
mixin PLUGINSERVICE
eventbus PLUGINSERVICE
object_holder_definalize PLUGINSERVICE
runtime_enum_extender PLUGINSERVICE
capability_token_subclass PLUGINSERVICE
accesstransformer PLUGINSERVICE
runtimedistcleaner PLUGINSERVICE
mixin TRANSFORMATIONSERVICE
fml TRANSFORMATIONSERVICE
FML Language Providers:
[email protected]
javafml@null
Mod List:
client-1.18.1-20211210.034407-srg.jar |Minecraft |minecraft |1.18.1 |DONE |Manifest: a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f
forge-1.18.1-39.0.10-universal.jar |Forge |forge |39.0.10 |DONE |Manifest: 22:af:21:d8:19:82:7f:93:94:fe:2b:ac:b7:e4:41:57:68:39:87:b1:a7:5c:c6:44:f9:25:74:21:14:f5:0d:90
Goblins_Dungeons_1.0.5.jar |Goblins & Dungeons |goblinsanddungeons |1.0.5 |DONE |Manifest: NOSIGNATURE
Crash Report UUID: 95c8f059-90e4-41f3-adc8-33f83ff7bce1
FML: 39.0
Forge: net.minecraftforge:39.0.10

Try updating your forge.