Ther is no crash in server:
Console log:
[22:23:24] [Server thread/WARN] [minecolonies/]: Unhandled modifier in loot table: minecraft:set_potion
[22:23:56] [User Authenticator #1/INFO] [minecraft/ServerLoginPacketListenerImpl]: UUID of player kobango is 499ee949-d5bb-4dbc-a34a-6cf3908c36a1
[22:24:25] [Server thread/INFO] [minecraft/ServerLoginPacketListenerImpl]: Disconnecting com.mojang.authlib.GameProfile@6f22090b[id=499ee949-d5bb-4dbc-a34a-6cf3908c36a1,name=kobango,properties={textures=[com.mojang.authlib.properties.Property@43764164]},legacy=false] (/94.254.185.99:37911): Took too long to log in
[22:24:25] [Server thread/INFO] [minecraft/ServerLoginPacketListenerImpl]: com.mojang.authlib.GameProfile@6f22090b[id=499ee949-d5bb-4dbc-a34a-6cf3908c36a1,name=kobango,properties={textures=[com.mojang.authlib.properties.Property@43764164]},legacy=false] (/94.254.185.99:37911) lost connection: Took too long to log in
[22:24:25] [Server thread/WARN] [minecraft/Connection]: handleDisconnection() called twice
and client log