nah0131

That helped me a lot, thanks mate! Found the problem.

I am getting a com.mojang.authlib.exceptions.AuthenticationException when I am trying to load a world, Minecraft is crashing. Here is the full Error Log: [20:17:39.316] [Server thread/INFO] [minecraft/MinecraftServer]: Preparing spawn area: 100% [20:17:39.316] [Server thread/INFO] [minecraft/MinecraftServer]: Time elapsed: 8380 ms [20:17:39.432] [Server thread/DEBUG] [ne.mi.co.DimensionManager/DIMS]: Queueing dimension -1 to unload [20:17:39.611] [Server thread/DEBUG] [ne.mi.co.DimensionManager/DIMS]: Queueing dimension 1 to unload [20:17:39.628] [Server thread/INFO] [minecraft/IntegratedServer]: Changing view distance to 12, from 10 [20:17:40.320] [Client thread/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Starting local connection. [20:17:40.716] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Starting local connection. [20:17:40.927] [Server thread/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Sending ticking packet info 'net.minecraftforge.fml.network.FMLHandshakeMessages$S2CModList' to 'fml:handshake' sequence 0 [20:17:40.939] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.FMLLoginWrapper/FMLHANDSHAKE]: Recieved login wrapper packet event for channel fml:handshake with index 0 [20:17:40.941] [Server thread/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Sending ticking packet info 'Config forge-server.toml' to 'fml:handshake' sequence 1 [20:17:40.942] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Logging into server with mod list [minecraft, forge, pyro] [20:17:40.942] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.NetworkRegistry/NETREGISTRY]: Channel 'fml:loginwrapper' : Version test of 'FML2' from server : ACCEPTED [20:17:40.942] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.NetworkRegistry/NETREGISTRY]: Channel 'fml:handshake' : Version test of 'FML2' from server : ACCEPTED [20:17:40.942] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.NetworkRegistry/NETREGISTRY]: Channel 'fml:play' : Version test of 'FML2' from server : ACCEPTED [20:17:40.942] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.NetworkRegistry/NETREGISTRY]: Accepting channel list from server [20:17:40.943] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.FMLLoginWrapper/FMLHANDSHAKE]: Dispatching wrapped packet reply for channel fml:handshake with index 0 [20:17:40.943] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Accepted server connection [20:17:40.943] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.FMLLoginWrapper/FMLHANDSHAKE]: Recieved login wrapper packet event for channel fml:handshake with index 0 [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Received client indexed reply 0 of type net.minecraftforge.fml.network.FMLHandshakeMessages$C2SModListReply [20:17:40.944] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/REGISTRIES]: Expecting 11 registries: [minecraft:potiontypes, forge:moddimensions, minecraft:biomes, minecraft:entities, minecraft:potions, minecraft:blocks, minecraft:villagerprofessions, minecraft:items, minecraft:enchantments, minecraft:soundevents, minecraft:tileentities] [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Received client connection with modlist [minecraft, forge, pyro] [20:17:40.944] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.FMLLoginWrapper/FMLHANDSHAKE]: Recieved login wrapper packet event for channel fml:handshake with index 1 [20:17:40.944] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Received config sync from server [20:17:40.944] [Netty Local Client IO #0/DEBUG] [ne.mi.fm.ne.FMLLoginWrapper/FMLHANDSHAKE]: Dispatching wrapped packet reply for channel fml:handshake with index 1 [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.NetworkRegistry/NETREGISTRY]: Channel 'fml:loginwrapper' : Version test of 'FML2' from client : ACCEPTED [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.NetworkRegistry/NETREGISTRY]: Channel 'fml:handshake' : Version test of 'FML2' from client : ACCEPTED [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.NetworkRegistry/NETREGISTRY]: Channel 'fml:play' : Version test of 'FML2' from client : ACCEPTED [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.NetworkRegistry/NETREGISTRY]: Accepting channel list from client [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Accepted client connection mod list [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.FMLLoginWrapper/FMLHANDSHAKE]: Recieved login wrapper packet event for channel fml:handshake with index 1 [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Received client indexed reply 1 of type net.minecraftforge.fml.network.FMLHandshakeMessages$C2SAcknowledge [20:17:40.944] [Netty Server IO #1/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Received acknowledgement from client [20:17:40.950] [Server thread/DEBUG] [ne.mi.fm.ne.FMLHandshakeHandler/FMLHANDSHAKE]: Handshake complete! [20:17:41.002] [Netty Local Client IO #0/INFO] [ne.mi.fm.ne.NetworkHooks/]: Connected to a modded server. [20:17:41.111] [Server thread/INFO] [minecraft/PlayerList]: Test[local:E:a1610599] logged in with entity id 546 at (-16.5, 75.0, 171.5) [20:17:41.132] [Server thread/INFO] [minecraft/MinecraftServer]: Test joined the game [20:17:42.871] [Server thread/INFO] [minecraft/IntegratedServer]: Saving and pausing game... [20:17:42.885] [Server thread/INFO] [minecraft/MinecraftServer]: Saving chunks for level 'New World'/minecraft:overworld [20:17:42.885] [Server thread/DEBUG] [ne.mi.fm.FMLWorldPersistenceHook/WP]: Gathering id map for writing to world save New World [20:17:43.364] [Client thread/INFO] [minecraft/AdvancementList]: Loaded 0 advancements [20:17:43.665] [pool-5-thread-1/WARN] [mojang/YggdrasilMinecraftSessionService]: Couldn't look up profile properties for com.mojang.authlib.GameProfile@7a94678e[id=444cf323-978c-3e83-9288-612345bfec67,name=Test,properties={},legacy=false] com.mojang.authlib.exceptions.AuthenticationException: The client has sent too many requests within a certain amount of time at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:79) ~[authlib-1.5.25.jar:?] at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:180) ~[authlib-1.5.25.jar:?] at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService$1.load(YggdrasilMinecraftSessionService.java:60) ~[authlib-1.5.25.jar:?] at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService$1.load(YggdrasilMinecraftSessionService.java:57) ~[authlib-1.5.25.jar:?] at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3716) ~[guava-21.0.jar:?] at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2424) ~[guava-21.0.jar:?] at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2298) ~[guava-21.0.jar:?] at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2211) ~[guava-21.0.jar:?] at com.google.common.cache.LocalCache.get(LocalCache.java:4154) ~[guava-21.0.jar:?] at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:4158) ~[guava-21.0.jar:?] at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:5147) ~[guava-21.0.jar:?] at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:5153) ~[guava-21.0.jar:?] at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:170) ~[authlib-1.5.25.jar:?] at net.minecraft.client.Minecraft.getProfileProperties(Minecraft.java:1909) ~[?:?] at net.minecraft.client.resources.SkinManager.lambda$loadProfileTextures$1(SkinManager.java:111) ~[?:?] at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_191] at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_191] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_191] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_191] at java.lang.Thread.run(Unknown Source) [?:1.8.0_191] [20:17:43.723] [Server thread/WARN] [minecraft/MinecraftServer]: Can't keep up! Is the server overloaded? Running 2380ms or 47 ticks behind I have already read this topic: The problem is that I am not even trying to connect to a multiplayer server. I am just trying to join a singleplayer game. Another problem is that it doesn't seem like I changed something relevant in code, even after changing it back the Exception is still thrown. I really need some help at this point.