Error creating portals with better portals mod

[seldron]

I installed more mods in my minecraft server and when I was testing if everything was fine I tried to make a portal (with better portals) and at the start it seemed to work properly but suddenly the portal disappeared and this error showed in the console:

 

 

[13:06:50] [Server thread/ERROR] [FML]: Exception caught during firing event net.minecraftforge.event.entity.EntityJoinWorldEvent@378ad29b:
java.lang.NullPointerException: null
        at journeymap.common.network.impl.MessageProcessor.sendToPlayer(MessageProcessor.java:240) ~[MessageProcessor.class:1.12.2-5.5.6]
        at journeymap.server.events.ForgeEvents.sendConfigsToPlayer(ForgeEvents.java:82) ~[ForgeEvents.class:1.12.2-5.5.6]
        at journeymap.server.events.ForgeEvents.onEntityJoinWorldEvent(ForgeEvents.java:64) ~[ForgeEvents.class:1.12.2-5.5.6]
        at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_739_ForgeEvents_onEntityJoinWorldEvent_EntityJoinWorldEvent.invoke(.dynamic) ~[?:?]
        at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) ~[ASMEventHandler.class:?]
        at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182) [EventBus.class:?]
        at net.minecraft.world.World.func_72838_d(World.java:1209) [amu.class:?]
        at net.minecraft.world.WorldServer.func_72838_d(WorldServer.java:1058) [oo.class:?]
        at de.johni0702.minecraft.view.impl.server.ServerWorldsManagerImpl.createWorldManager(ServerWorldsManagerImpl.kt:206) [ServerWorldsManagerImpl.class:?]
        at de.johni0702.minecraft.view.impl.server.ServerWorldsManagerImpl.getOrCreateWorldManager(ServerWorldsManagerImpl.kt:178) [ServerWorldsManagerImpl.class:?]
        at de.johni0702.minecraft.view.impl.server.ServerWorldsManagerImpl.registerView(ServerWorldsManagerImpl.kt:54) [ServerWorldsManagerImpl.class:?]
        at de.johni0702.minecraft.view.server.ServerWorldsManager$DefaultImpls.createView(ServerWorldsManager.kt:32) [ServerWorldsManager$DefaultImpls.class:?]
        at de.johni0702.minecraft.view.impl.server.ServerWorldsManagerImpl.createView(ServerWorldsManagerImpl.kt:35) [ServerWorldsManagerImpl.class:?]
        at de.johni0702.minecraft.betterportals.common.PortalAgent.registerView(PortalAgent.kt:543) [PortalAgent.class:?]
        at de.johni0702.minecraft.betterportals.common.PortalAgent.addTrackingPlayer(PortalAgent.kt:536) [PortalAgent.class:?]
        at de.johni0702.minecraft.betterportals.common.PortalAgent.updateViews(PortalAgent.kt:557) [PortalAgent.class:?]
        at de.johni0702.minecraft.betterportals.common.PortalAgent.setPortal(PortalAgent.kt:136) [PortalAgent.class:?]
        at de.johni0702.minecraft.betterportals.common.entity.AbstractPortalEntity.setPortal(AbstractPortalEntity.kt:62) [AbstractPortalEntity.class:?]
        at de.johni0702.minecraft.betterportals.common.entity.AbstractPortalEntity.link(AbstractPortalEntity.kt:144) [AbstractPortalEntity.class:?]
        at de.johni0702.minecraft.betterportals.common.block.PortalBlock$tryToLinkPortals$2.accept(PortalBlock.kt:125) [PortalBlock$tryToLinkPortals$2.class:?]
        at de.johni0702.minecraft.betterportals.common.block.PortalBlock$tryToLinkPortals$2.accept(PortalBlock.kt:25) [PortalBlock$tryToLinkPortals$2.class:?]
        at java.util.concurrent.CompletableFuture.uniAccept(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture$UniAccept.tryFire(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture$Completion.run(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_231]
        at net.minecraft.server.MinecraftServer.func_175586_a(MinecraftServer.java:1383) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.func_152344_a(MinecraftServer.java:1395) [MinecraftServer.class:?]
        at de.johni0702.minecraft.betterportals.common.block.PortalBlock$tryToLinkPortals$3.execute(PortalBlock.kt:126) [PortalBlock$tryToLinkPortals$3.class:?]
        at java.util.concurrent.CompletableFuture$UniCompletion.claim(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture.uniAccept(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture$UniAccept.tryFire(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture.postComplete(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture.postFire(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture$Completion.run(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_231]
        at net.minecraft.server.MinecraftServer.func_175586_a(MinecraftServer.java:1383) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.func_152344_a(MinecraftServer.java:1395) [MinecraftServer.class:?]
        at de.johni0702.minecraft.betterportals.common.block.PortalBlock$findOrCreateRemotePortal$5.execute(PortalBlock.kt:277) [PortalBlock$findOrCreateRemotePortal$5.class:?]
        at java.util.concurrent.CompletableFuture$UniCompletion.claim(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture.uniWhenComplete(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture.postComplete(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture.postFire(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture$UniApply.tryFire(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.CompletableFuture$Completion.run(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_231]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_231]
        at net.minecraft.util.Util.func_181617_a(SourceFile:46) [h.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:723) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397) [nz.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_231]
[13:06:50] [Server thread/ERROR] [FML]: Index: 19 Listeners:
[13:06:50] [Server thread/ERROR] [FML]: 0: HIGHEST
[13:06:50] [Server thread/ERROR] [FML]: 1: ASM: net.minecraftforge.common.ForgeInternalHandler@ecfe9e2 onEntityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 2: ASM: com.attributestudios.wolfarmor.common.event.EntityEventHandler@3537da04 onEntityWolfArmoredJoinedWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 3: NORMAL
[13:06:50] [Server thread/ERROR] [FML]: 4: ASM: class crazypants.enderio.base.handler.darksteel.PlayerAOEAttributeHandler handleJoin(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 5: ASM: class com.tiviacz.travellersbackpack.handlers.PlayerEventHandler onPlayerJoin(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 6: ASM: baubles.common.event.EventHandlerEntity@6d141648 playerJoin(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 7: ASM: class buildcraft.lib.BCLibEventDist onEntityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 8: ASM: biomesoplenty.common.handler.SheepEventHandler@49c7db59 onEntityJoin(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 9: ASM: INSTANCE onEntityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 10: ASM: pegbeard.dungeontactics.handlers.DTEventHandler@1e7dee77 onJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 11: ASM: endreborn.handlers.EventHandler@2bbda56a onJoin2(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 12: ASM: endreborn.handlers.EventHandler@2bbda56a onJoin3(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 13: ASM: endreborn.handlers.EventHandler@2bbda56a onJoin(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 14: ASM: ivorius.reccomplex.events.handlers.RCForgeEventHandler@6d389456 onEntityDrop(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 15: ASM: src.jojobadv.ModBase.EventHandlerJojoBAdv@1dca9499 onEntitySpawn(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 16: ASM: com.attributestudios.wolfarmor.common.event.EntityEventHandler@3537da04 onAttachEntityAI(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 17: ASM: mekanism.common.item.ItemBlockCardboardBox@25c60349 onEntitySpawn(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 18: ASM: class com.enderio.core.common.handlers.XPBoostHandler handleArrowFire(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 19: ASM: journeymap.server.events.ForgeEvents@bbb18a4 onEntityJoinWorldEvent(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 20: ASM: greymerk.roguelike.EntityJoinWorld@3fb9c35b OnEntityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V
[13:06:50] [Server thread/ERROR] [FML]: 21: LOWEST
[13:06:50] [Server thread/ERROR] [FML]: 22: ASM: fluxnetworks.common.CommonProxy@7579480a onEntityAdded(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V

 

 

This are the mods I have in my server mods folder:

 

aethercontinuation.jar
BattleTowers.jar
Baubles.jar
bc_ore_processing.jar
yungsbettercaves.jar
better_portals.jar
BiomesOPlenty.jar
buildcraft.jar
ceilingtorch.jar
Chameleon.jar
chisel.jar
CodeChickenLib.jar
CoFHCore.jar
CoFHWorld.jar
connected_textures_mod.jar
crafttweaker.jar
creative_core.jar
doubledoors.jar
DungeonTactics.jar
EnderCore.jar
endercrop.jar
EnderIO.jar
EndReborn.jar
fluxnetworks.jar
forgelin.jar
gravestone.jar
ido.jar
ironchests.jar
IvToolkit.jar
Journeymap.jar
just_enough_items.jar
LetSleepingDogsLie.jar
LibraryEx.jar
mantle.jar
Mekanism.jar
NaturesCompass.jar
NetherEx.jar
online_picture_frames.jar
RecurrentComplex.jar
RedstoneFlux.jar
RoguelikeDungeons.jar
rustic.jar
SoundFilters.jar
steve_bizarre_adventure.jar
StorageDrawers.jar
TheAether.jar
ThermalDynamics.jar
ThermalExpansion.jar
ThermalFoundation.jar
tinkers_construct.jar
TravellersBackpack.jar
twilight_forest.jar
WhatsThatSlot.jar
wolfarmor.jar
worldedit.jar
worleycaves.jar

 

Does someone know what the problem is and if I can fix it without deleting mods?