Minecolonies version

minecolonies-universal-1.11.2-0.8.4418.jar
forge-1.11.2-13.20.1.2513-universal.jar

Steps to reproduce the problem

Failed to handle packet for ....
java.lang.NullPointerException
at com.minecolonies.coremod.util.ServerUtils.getPlayerFromUUID(ServerUtils.java:143) ~[ServerUtils.class:?]
at com.minecolonies.coremod.util.ServerUtils.getPlayerFromPermPlayer(ServerUtils.java:124) ~[ServerUtils.class:?]
at com.minecolonies.coremod.util.ServerUtils.getPlayersFromPermPlayer(ServerUtils.java:103) ~[ServerUtils.class:?]
at com.minecolonies.coremod.util.AchievementUtils.syncAchievements(AchievementUtils.java:37) ~[AchievementUtils.class:?]
at com.minecolonies.coremod.colony.ColonyManager$$Lambda$719/661786978.accept(Unknown Source) ~[?:?]
at java.lang.Iterable.forEach(Iterable.java:75) ~[?:1.8.0_45-internal]
at com.minecolonies.coremod.colony.ColonyManager.syncAllColoniesAchievements(ColonyManager.java:234) ~[ColonyManager.class:?]
at com.minecolonies.coremod.event.FMLEventHandler.onPlayerLogin(FMLEventHandler.java:71) ~[FMLEventHandler.class:?]
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_438_FMLEventHandler_onPlayerLogin_PlayerLoggedInEvent.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:185) ~[EventBus.class:?]
at net.minecraftforge.fml.common.FMLCommonHandler.firePlayerLoggedIn(FMLCommonHandler.java:574) ~[FMLCommonHandler.class:?]
at net.minecraft.server.m
anagement.PlayerList.initializeConnectionToPlayer(PlayerList.java:214) ~[mt.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.completeServerSideConnection(NetworkDispatcher.java:262) ~[NetworkDispatcher.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.access$100(NetworkDispatcher.java:73) ~[NetworkDispatcher.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:211) ~[NetworkDispatcher$1.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:287) ~[er.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180) [mh.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:743) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:384) [lh.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45-internal]

Would you be okay with giving us some context? such as when this happened, what did this cause, and such please? thanks!

when changing mod update version

what happens to the player can not connect even if he has no colony (if he had a colony already existing with an old version)

at each restart of the server 1 move we can connect 1 shot no

I had to delete all the existing colony and thus make that the player starts again to solve the problem of the has the update