session id is null hamachi with my friend

[fury of peppolo]

com.mojang.authlib.GameProfile@1a42d08[id=<null>,name=imperatorsergio,properties={},legacy=false] (/25.70.58.120:58924) lost connection: Disconnected 

when my friend tries to connect with me this error shows up and he display invalid session, ho to riddle ith that

[Draco18s]

And this is Forge's problem....how?

[DragonITA]

11 hours ago, fury of peppolo said:

com.mojang.authlib.GameProfile@1a42d08[id=<null>,name=imperatorsergio,properties={},legacy=false] (/25.70.58.120:58924) lost connection: Disconnected 

when my friend tries to connect with me this error shows up and he display invalid session, ho to riddle ith that

@fury of peppolo It may be that it gives you this error because you are not using the Official Version of Minecraft, if you are using it then it is a problem with your Mod that is not compatible in Multiplayer and you have to update and fix it so that you can play with your friend. Let me know if this helped you.