Bad packet id 64

one time i tried to join my server and i got the error

17:01:43 <> Player net.minecraft.util.com.mojang.authlib.GameProfile@4f3dec1a[id=4c56d686-df8a-3957-b16d-5f3a1fee65b4,name=bobAFK,properties={},legacy=false] (/94.2.202.246:60041) disconnected (Internal server error)


help ?