I need help with my server

[04Jul2021 21:34:56.258] [Server thread/INFO] [net.minecraft.network.login.ServerLoginNetHandler/]: com.mojang.authlib.GameProfile@55b1e208[id=,name=Pekefoxy,properties={},legacy=false] (/ lost connection: Disconnected
[04Jul2021 21:35:25.198] [Server thread/INFO] [net.minecraft.network.login.ServerLoginNetHandler/]: com.mojang.authlib.GameProfile@3393b32a[id=,name=Pekefoxy,properties={},legacy=false] (/ lost connection: Disconnected
[04Jul2021 21:36:35.497] [Server thread/INFO] [net.minecraft.network.login.ServerLoginNetHandler/]: com.mojang.authlib.GameProfile@a29b135[id=,name=Pekefoxy,properties={},legacy=false] (/ lost connection: Disconnected

I get this everytime i try to get into my server any idea?

We will need more details on your setup. what method did you take to build the system? Is this a vanilla, FTB, spigot, etc server? Which server version and does the java version match? How are your connecting, is it happening when you log in internally or externally?

Related? As fornax asked, is this a modded server?

Failed to synchronize data from server · Issue #834 · AllTheMods/ATM-6 · GitHub