Endcrypting Error

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    Hi! I would like to report a server loading problem, I have an encryption problem. The server starts normally but after starting it is impossible to connect to it. The game crashes on encryption and you have to kill its process. I noticed that the problem occurred from a certain forge installation and you cannot choose earlier ones to verify the problem. Do you know what could be the cause? Re-installed the server and modpack and it still doesn't work.
    Please Help

    Can you share the crash-report

    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

    Quote from kobango

    Hi! I would like to report a server loading problem, I have an encryption problem. The server starts normally but after starting it is impossible to connect to it. The game crashes on encryption and you have to kill its process. I noticed that the problem occurred from a certain forge installation and you cannot choose earlier ones to verify the problem. Do you know what could be the cause? Re-installed the server and modpack and it still doesn't work.
    Please Help

    Is it a self made modpack or and modpack from the modpack section