Chicken rat mount ticking entity caused crash

you removed the important part of the crashlog, which is then entire part before that part. The removed bit will actually tell me whats wrong, this just gives me info about the possible entity at fault

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

-- Entity being ticked --
Details:
Entity Type: rats:rat_mount_chicken (com.github.alexthe666.rats.server.entity.EntityRatChickenMount)
Entity ID: 53717
Entity Name: Rat Chicken Mount
Entity's Exact location: -1173.12, 67.00, -16.28
Entity's Block location: World: (-1174,67,-17), Chunk: (at 10,4,15 in -74,-2; contains blocks -1184,0,-32 to -1169,255,-17), Region: (-3,-1; contains chunks -96,-32 to -65,-1, blocks -1536,0,-512 to -1025,255,-1)
Entity's Momentum: 0.00, -0.08, 0.00
Entity's Passengers: [EntityRat['Rat'/48, l='ServerLevel[world]', x=-1173.18, y=67.70, z=-16.36]]
Entity's Vehicle: ERROR NullPointerException: null
Entity NBT: {Brain:{memories:{}},HurtByTimestamp:0,ForgeData:{},Attributes:[{Base:16.0d,Modifiers:[{Amount:0.032116535473626834d,Operation:1,UUID:[I;-17498829,-734049034,-1558061537,-1730537795],Name:"Random spawn bonus"}],Name:"minecraft:generic.follow_range"},{Base:0.08d,Name:"forge:entity_gravity"},{Base:0.3d,Name:"minecraft:generic.movement_speed"}],Invulnerable:0b,FallFlying:0b,PortalCooldown:0,AbsorptionAmount:0.0f,FallDistance:0.0f,CanUpdate:1b,DeathTime:0s,BoundingBox:[-1173.4482610884345d,67.0d,-16.60240981862826d,-1172.7982611122764d,67.75d,-15.952409842470122d],ForgeCaps:{"mahoutsukai:mahou":{MAHOUTSUKAI_PLAYER_PREV_YAW:0.0f,MAHOUTSUKAI_SHOW_MAHOU:1b,MAHOUTSUKAI_MANA_FULL:1b,MAHOUTSUKAI_MANA_UP_COUNTER:100,MAHOUTSUKAI_PLAYER_POSSESSING:0b,MAHOUTSUKAI_AUTHORITY_HIT:0b,MAHOUTSUKAI_LAST_RECIPE_CLOTH:0b,MAHOUTSUKAI_PLAYER_HAS_MAGIC:0b,MAHOUTSUKAI_FAE_SPAWN:1b,MAHOUTSUKAI_PLAYER_CHARGE_RATE:0.1d,MAHOUTSUKAI_PLAYER_DAMAGE_EXCHANGE_USES:0,MAHOUTSUKAI_PLAYER_PREV_PITCH:0.0f,MAHOUTSUKAI_PLAYER_MAX_MANA:100,MAHOUTSUKAI_PLAYER_STORED_MANA:100,MAHOUTSUKAI_PLAYER_PROTECTIVE_DISPLACEMENT_USES:0,MAHOUTSUKAI_CANCEL_TIME:0L,MAHOUTSUKAI_PLAYER_DEATH_COLLECTION_USES_LEFT:0.0f},"mekanism:radiation":{radiation:1.0E-7d},"twilightforest:cap_shield":{permshields:0,tempshields:0},"citadel:extended_entity_data_citadel":{"Ice And Fire - Siren Property Tracker":{CharmedBySiren:0b,SirenID:0},"Ice And Fire - Frozen Property Tracker":{TicksUntilUnfrozen:0,IsFrozen:0b},"Ice and Fire - Player Property Tracker":{DismountedDragon:0b,GauntletDamage:0,DreadPortalZ:0,DreadPortalY:0,DreadPortalX:0},"Ice And Fire - Chain Property Tracker":{ConnectedEntities:[]}},"pneumaticcraft:hacking":{},"shrink:shrunk":{width:0.65f,isshrinking:0b,defaulteyeheight:0.69f,fixed:0b,isshrunk:0b,height:0.75f},"eidolon:knowledge":{signs:[],facts:[]}},HandDropChances:[0.085f,0.085f],PersistenceRequired:0b,UUID:[I;-1785046181,-221821907,-1283431561,92160445],Motion:[0.0d,-0.0784000015258789d,0.0d],Health:4.0f,LeftHanded:0b,Air:300s,OnGround:1b,Rotation:[147.74664f,0.0f],HandItems:[{},{}],ArmorDropChances:[0.085f,0.085f,0.085f,0.085f],Passengers:[{Brain:{memories:{}},HurtByTimestamp:0,Owner:[I;-1859067292,530468527,-1904158419,83100662],Attributes:[{Base:128.0d,Modifiers:[{Amount:0.05294263143518061d,Operation:1,UUID:[I;-237157957,265635443,-1409152006,1007001525],Name:"Random spawn bonus"}],Name:"minecraft:generic.follow_range"},{Base:8.0d,Name:"minecraft:generic.max_health"},{Base:0.08d,Name:"forge:entity_gravity"},{Base:0.3d,Name:"minecraft:generic.movement_speed"},{Base:0.0d,Name:"minecraft:generic.armor"},{Base:1.0d,Name:"forge:swim_speed"},{Base:1.0d,Name:"minecraft:generic.attack_damage"}],Invulnerable:0b,AbsorptionAmount:0.0f,CheeseFeedings:10,RandomEffectCooldown:0,FallDistance:0.0f,Toga:0b,InLove:0,CanUpdate:1b,TransportingRF:0,ForgeCaps:{"mahoutsukai:mahou":{MAHOUTSUKAI_PLAYER_PREV_YAW:0.0f,MAHOUTSUKAI_SHOW_MAHOU:1b,MAHOUTSUKAI_MANA_FULL:1b,MAHOUTSUKAI_MANA_UP_COUNTER:100,MAHOUTSUKAI_PLAYER_POSSESSING:0b,MAHOUTSUKAI_AUTHORITY_HIT:0b,MAHOUTSUKAI_LAST_RECIPE_CLOTH:0b,MAHOUTSUKAI_PLAYER_HAS_MAGIC:0b,MAHOUTSUKAI_FAE_SPAWN:1b,MAHOUTSUKAI_PLAYER_CHARGE_RATE:0.1d,MAHOUTSUKAI_PLAYER_DAMAGE_EXCHANGE_USES:0,MAHOUTSUKAI_PLAYER_PREV_PITCH:0.0f,MAHOUTSUKAI_PLAYER_MAX_MANA:100,MAHOUTSUKAI_PLAYER_STORED_MANA:100,MAHOUTSUKAI_PLAYER_PROTECTIVE_DISPLACEMENT_USES:0,MAHOUTSUKAI_CANCEL_TIME:0L,MAHOUTSUKAI_PLAYER_DEATH_COLLECTION_USES_LEFT:0.0f},"mekanism:radiation":{radiation:1.0E-7d},"twilightforest:cap_shield":{permshields:0,tempshields:0},"citadel:extended_entity_data_citadel":{"Ice And Fire - Chicken Property Tracker":{TimeUntilNextEgg:1},"Ice And Fire - Siren Property Tracker":{CharmedBySiren:0b,SirenID:0},"Ice And Fire - Frozen Property Tracker":{TicksUntilUnfrozen:0,IsFrozen:0b},"Ice and Fire - Player Property Tracker":{DismountedDragon:0b,GauntletDamage:0,DreadPortalZ:0,DreadPortalY:0,DreadPortalX:0},"Ice And Fire - Chain Property Tracker":{ConnectedEntities:[]}},"pneumaticcraft:hacking":{},"shrink:shrunk":{width:0.49f,isshrinking:0b,defaulteyeheight:0.41650003f,fixed:0b,isshrunk:0b,height:0.49f},"eidolon:knowledge":{signs:[],facts:[]}},HandDropChances:[1.0f,1.0f],PersistenceRequired:0b,Items:[{Slot:3b,id:"rats:rat_upgrade_chicken_mount",Count:1b}],id:"rats:rat",UUID:[I;-1851283548,-2105456565,-1216062384,1639795720],RadiusPosZ:0,ColorVariant:3,Air:300s,DyeColor:0b,RadiusPosY:0,HandItems:[{},{}],RadiusPosX:0,ArmorDropChances:[1.0f,1.0f,1.0f,1.0f],CustomSearchZone:0b,Dyed:0b,Pos:[-1173.1232611003554d,67.69999998807907d,-16.27740983054919d],WildTrust:100,CanPickUpLoot:0b,HurtTime:0s,TransportingFluid:{FluidName:"minecraft:empty",Amount:0},CoinCooldown:0,ForgeData:{"naturesaura:time_alive":5320840},Sitting:0b,FallFlying:0b,ForcedAge:0,SearchRadius:16,PortalCooldown:0,MonsterOwnerUUID:"",DeathTime:0s,BoundingBox:[-1173.4216312046385d,67.69999998807907d,-16.606977166095206d,-1172.9316311951018d,68.18999999761581d,-16.116977156558463d],MountCooldown:0,EatenItems:0,DigCooldown:0,VisualFlag:0b,Age:0,TamedByMonster:0b,Motion:[0.0d,-0.0784000015258789d,0.0d],HomeDistance:-1.0f,Health:8.0f,LeftHanded:0b,OnGround:0b,Rotation:[147.74664f,-27.990467f],Plague:0b,Command:1,Fire:-1s,ArmorItems:[{},{},{},{}],HomePosZ:0,HomePosY:0,Dancing:0b,CookingProgress:0,IsMale:1b,HomePosX:0,RespawnCountdown:0,BreedCooldown:0}],Pos:[-1173.1232611003554d,67.0d,-16.27740983054919d],Fire:-1s,ArmorItems:[{},{},{},{}],CanPickUpLoot:0b,HurtTime:0s}
Stacktrace:
at net.minecraft.world.World.func_217390_a(World.java:554) ~[?:?] {re:computing_frames,pl:accesstransformer:B,xf:fml:observerlib:coremodmethod,xf:fml:astralsorcery:sun_brightness_server,xf:fml:twilightforest:hitbox,pl:runtimedistcleaner:A,re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:observerlib:coremodmethod,xf:fml:astralsorcery:sun_brightness_server,xf:fml:twilightforest:hitbox,pl:mixin:APP:performant.mixins.json:world.WorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:404) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:forgeendertech:coremod,pl:mixin:APP:performant.mixins.json:world.ServerWorldBlockUpdateMixin,pl:mixin:APP:immersiveengineering.mixins.json:coremods.ServerWorldMixin,pl:mixin:APP:abnormals_core.mixins.json:ServerWorldMixin,pl:mixin:APP:endergetic.mixins.json:ServerWorldMixin,pl:mixin:APP:quark.mixins.json:ServerWorldMixin,pl:mixin:APP:performant.mixins.json:world.ServerWorldMixin,pl:mixin:APP:performant.mixins.json:entity.MobServerWorldMixin,pl:mixin:A,pl:runtimedistcleaner:A}

-- Affected level --
Details:
All players: 5 total; [ServerPlayerEntity['Renagade_Legend'/1078, l='ServerLevel[world]', x=-2793.82, y=55.67, z=429.66], ServerPlayerEntity['Eothorn'/39217, l='ServerLevel[world]', x=-1174.88, y=67.00, z=-16.52], ServerPlayerEntity['MbImAJosh'/767, l='ServerLevel[world]', x=-1030.83, y=97.97, z=-50.56], ServerPlayerEntity['Skystrike12'/51068, l='ServerLevel[world]', x=-1027.45, y=84.59, z=-53.01], ServerPlayerEntity['Zoe_Alex123'/49663, l='ServerLevel[world]', x=-1172.84, y=68.94, z=-20.94]]
Chunk stats: ServerChunkCache: 6836
Level dimension: minecraft:overworld
Level spawn location: World: (-128,71,-224), Chunk: (at 0,4,0 in -8,-14; contains blocks -128,0,-224 to -113,255,-209), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Level time: 14842725 game time, 18326532 day time
Level name: world
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Level weather: Rain time: 93207 (now: false), thunder time: 49425 (now: false)
Known server brands: vanilla, forge
Level was modded: true
Level storage version: 0x04ABD - Anvil
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:851) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:the_bumblezone.mixins.json:entities.MinecraftServerMixin,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:APP:mixin.terraforged.json:common.MixinMinecraftServer,pl:mixin:APP:elementalcraft.mixins.json:MixinMinecraftServer,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:291) ~[?:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:787) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:the_bumblezone.mixins.json:entities.MinecraftServerMixin,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:APP:mixin.terraforged.json:common.MixinMinecraftServer,pl:mixin:APP:elementalcraft.mixins.json:MixinMinecraftServer,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:642) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:the_bumblezone.mixins.json:entities.MinecraftServerMixin,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:APP:mixin.terraforged.json:common.MixinMinecraftServer,pl:mixin:APP:elementalcraft.mixins.json:MixinMinecraftServer,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServer.java:232) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftServerMixin,pl:mixin:APP:the_bumblezone.mixins.json:entities.MinecraftServerMixin,pl:mixin:APP:byg.mixins.json:server.MixinMinecraftServer,pl:mixin:APP:mixin.terraforged.json:common.MixinMinecraftServer,pl:mixin:APP:elementalcraft.mixins.json:MixinMinecraftServer,pl:mixin:A,pl:runtimedistcleaner:A}
at java.lang.Thread.run(Thread.java:834) [?:?] {}