My Server have like 10-15 member only at same time . and usually crash by this problem . can someone help me fix this
---- Minecraft Crash Report ----
WARNING: coremods are present:
SpongeCoremod (spongeforge-1.12.2-2838-7.3.0.jar)
Contact their authors BEFORE contacting forge
// I feel sad now 
Time: 11/7/21 11:41 AM
Description: Exception in server tick loop
java.lang.NullPointerException: Exception in server tick loop
at net.minecraft.server.MinecraftServer.handler$zof000$mapOptimization$onEndTickMapOptimization(MinecraftServer.java:5303)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:713)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
at java.lang.Thread.run(Unknown Source)
A detailed walkthrough of the error, its code path and all known details is as follows:
– Head –
Thread: Server thread
Stacktrace:
at net.minecraft.server.MinecraftServer.handler$zjg000$onCrashReport(MinecraftServer.java:4687)
– Sponge PhaseTracker –
Details:
Phase Stack: [Empty stack]
Stacktrace:
at net.minecraft.server.MinecraftServer.handler$zjg000$onCrashReport(MinecraftServer.java:4687)
at net.minecraft.server.MinecraftServer.func_71230_b(MinecraftServer.java:889)
at net.minecraft.server.dedicated.DedicatedServer.func_71230_b(DedicatedServer.java:371)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:558)
at java.lang.Thread.run(Unknown Source)
– System Details –
Details:
Minecraft Version: 1.12.2
Operating System: Windows Server 2016 (amd64) version 10.0
Java Version: 1.8.0_311, Oracle Corporation
Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 5558301464 bytes (5300 MB) / 10737418240 bytes (10240 MB) up to 10737418240 bytes (10240 MB)
JVM Flags: 20 total; -Xms10G -Xmx10G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
FML: MCP 9.42 Powered by Forge 14.23.5.2854 29 mods loaded, 29 mods active
States: ‘U’ = Unloaded ‘L’ = Loaded ‘C’ = Constructed ‘H’ = Pre-initialized ‘I’ = Initialized ‘J’ = Post-initialized ‘A’ = Available ‘D’ = Disabled ‘E’ = Errored
Mods:
| State | ID | Version | Source | Signature |
|:------ |:--------------- |:----------------- |:------------------------------------------ |:---------------------------------------- |
| LCHIJA | minecraft | 1.12.2 | minecraft.jar | None |
| LCHIJA | mcp | 9.42 | minecraft.jar | None |
| LCHIJA | FML | 8.0.99.99 | forge.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| LCHIJA | forge | 14.23.5.2854 | forge.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| LCHIJA | spongeapi | 7.3-7127e0882 | spongeforge-1.12.2-2838-7.3.0.jar | None |
| LCHIJA | sponge | 1.12.2-7.3.0 | spongeforge-1.12.2-2838-7.3.0.jar | None |
| LCHIJA | spongeforge | 1.12.2-2838-7.3.0 | spongeforge-1.12.2-2838-7.3.0.jar | None |
| LCHIJA | pixelmon | 8.3.1 | Pixelmon-1.12.2-8.3.1c-universal.jar | None |
| LCHIJA | pixelextras | 2.5.14 | PixelExtras-1.12.2-2.5.14-universal.jar | None |
| LCHIJA | trainercommands | 2.5.1 | TrainerCommands-1.12.2-2.5.1-universal.jar | None |
Plugins:
| State | ID | Version | Source | Signature |
|:------ |:--------------------- |:--------------------- |:---------------------------------------------- |:--------- |
| LCHIJA | clearmob | 1.12.2-3.0.1 | ClearMob-1.12.2-3.0.1.jar | None |
| LCHIJA | pixelmoneconomybridge | 2.0.8 | EconomyBridge-2.0.8.jar | None |
| LCHIJA | economylite | 2.15.1 | EconomyLite-7.1.0-2.15.1.jar | None |
| LCHIJA | flexiblelogin | 0.17.4 | flexiblelogin-0.17.4.jar | None |
| LCHIJA | impactor | 3.1.2 | Impactor-Sponge-7.1.5-3.1.2.jar | None |
| LCHIJA | localeapi | 1.0 | LocaleAPI-1.0.0-S7.1-RELEASE.jar | None |
| LCHIJA | violet | 2.4.2-SNAPSHOT | SpongeViolet-2.4.2-SNAPSHOT-shadow.jar | None |
| LCHIJA | locket | 1.2.0 | Locket-1.2.0.jar | None |
| LCHIJA | luckperms | 5.3.71 | LuckPerms-Sponge-5.3.71.jar | None |
| LCHIJA | mmcrestrict | 1.5.1 | MMCRestrict-1.5.1-API-7.jar | None |
| LCHIJA | nations | 2.11-S7.0-MC1.12.1 | Nations-2.11-S7.0-MC1.12.1.jar | None |
| LCHIJA | nucleus | 2.4.0 | Nucleus-2.4.0-MC1.12.2-SpongeAPI7.3-plugin.jar | None |
| LCHIJA | chatpixel | 1.80 | PixelChat-1.80.jar | None |
| LCHIJA | pixelgenocide | 1.1.1 | PixelGenocide-1.1.1.jar | None |
| LCHIJA | placeholderapi | 4.4 | PlaceholderAPI-4.4.jar | None |
| LCHIJA | protocolcontrol | 0.0.2 | protocolcontrol-0.0.2.jar | None |
| LCHIJA | skitskurrsranchloot | 1.0 | RanchLoot.jar | None |
| LCHIJA | safetrade | 1.12.2-3.2.2-PIXELMON | SafeTrade-1.12.2-3.2.2-PIXELMON.jar | None |
| LCHIJA | virtualchest | 0.4.6 | VirtualChest-0.4.6.jar | None |
Loaded coremods (and transformers):
SpongeCoremod (spongeforge-1.12.2-2838-7.3.0.jar)
org.spongepowered.common.launch.transformer.SpongeSuperclassTransformer
Profiler Position: N/A (disabled)
Player Count: 0 / 40; []
Is Modded: Definitely; Server brand changed to ‘fml,forge,sponge’
Type: Dedicated Server (map_server.txt)